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Abhi from Shimoga school, smg
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Here, the answer is A. 7 tenths is 7 over 10, if you divide 7 by 10 you get 7 tenths as a decimal which is 0.7 Similarly, 45 tenths is 45 over 10,if you divide 45 by 10 you get 45 tenths as a decimal which is 4.50 21 hundredths is 21 over 100, if you divide 21 by 100 you get 21 hundredths as a decimal which is 0.21 Hence, the sum of 7 tenths, 21 hundredths and 45 tenths is (0.7 + 0.21 + 4.50) = 5.41

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Raghav Tyagi from birla vidya niketan, new delhi
Subject :IMO    Class : Class 8

Ans 1:

from ,
Class : Class 9
a2 - 13a + 30 = a2 + 4a + 4 a - 10 a + 2 => (a2 - 13a + 30)(a + 2) = (a2 + 4a + 4)(a - 10) => a3 + 2a2 - 13a2 - 26a + 30a + 60 = a3 - 10a2 +4a2 + 4a - 40 => - 11a2 + 4a + 60 = - 6a2+ 4a - 40 => - 11a2 + 6a2 + 60 + 40 = 0 => - 5a2 + 100 = 0 => 5a2 = 100 => a2 = 20 => a = √20 Insert the value of'a'and you will get the answer.

Ans 2:

from , Kalyan
Class : Class 9
i got 5

Ans 3:

Harsh Shukla from DPS Bangalore East, Bengaluru
Class : Class 9
This question is completely wrong as when we factorise (a^2-13a 30) and (a^2 4a 4), we get (a-3)(a-10) and (a 2)^2 respectively. After calculating more, we get a-3=a 2 which has no solution as -3≠2

Ans 4:

Prachi from Holy Child Public school, Faridabad
Class : Class 9

Ans 5:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
but that is not what we want

Ans 6:

Ayush Gorain from Sarala Birla Public School, Ranchi
Class : Class 8
By factorization process, we get a-3 = a 2, which is in fact a linear equation without a solution. On the other hand, by solving through cross multiplication method (as shown in the solution of this question), we get a²-8a-20 = 0, or (a 2)(a-10) = 0. By solving the quadratic equation, we get a as (-2) or (10), which, upon substituting in the formula given in the question, doesn't satisfy the equation. This is because the equation in the above question isn't even actually correct, as (a-3) is not equal to (a 2), as that would lead to the statement: 5 = 0, which is obviously not true.

Ans 7:

VIBHU SHARMA from Mount St Mary, NEW DELHI
Class : Class 8

Ans 8:

Rijrashwa Sreejith from Devamatha C M I Public School, Thrissur
Class : Class 10
The question is wrong.If A is the answer, solving this quadratic eqn, we get a=10 or -2since the answer is a simplified form of the question, these values of a should also hold for question also. But if we put these vales in the question either LHS or RHS denominator will become 0 making it undefined.the actual procedure is to factorize.=> [(a-3)(a-10)]/(a-10)=[(a 2)(a 2)]/(a 2)=> a-3 = a 2=> -3 = 2 which is absurd. so the question is wrong.

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Kavish Marwah from Pawar Public School Chandivali, Mumbai
Subject :IMO    Class : Class 4

Match the following.

Column 1----------Column 2

(i) 926543 (p) Smallest 5-digit number
(ii) 10000 (q) Place value of 2 is 2000
(iii) 962540 (r) 100039 when rounded off to nearest 100
(iv) 100000 (s) Successor of 926542


A (i) - (s), (ii) - (p), (iii) - (q), (iv) - (r)
B (i) - (q), (ii) - (r), (iii) - (s), (iv) - (p)
C (i) - (s), (ii) - (r), (iii) - (q), (iv) - (p)
D (i) - (q), (ii) - (p), (iii) - (s), (iv) - (r)


rd

Ans 1:

Nirvi Pal from jasudben ML School, mumbai
Class : Class 5
aasefrfefsaxcfbt

Ans 2:

shubhavi Dhondge from NPS, Banagalore
Class : Class 8

Ans 3:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4

Ans 4:

Amarjit Sahu from D.A.V. Public School, Midnapore
Class : Class 6
A

Ans 5:

Devansh from Dps chandigarh, Chandigadh
Class : Class 3

Ans 6:

Ashwak from Cambridge, Jalandhar
Class : Class 8
A

Ans 7:

Rajkishore Gupta from City Pride, Pune
Class : Class 4

Ans 8:

Yatindra G from SBOA, Chennai
Class : Class 4
A is the answer.

Ans 9:

Nirvi Pal from jasudben ML School, mumbai
Class : Class 5
a

Ans 10:

BIR from LOTUS VALLEYINTERNATIONAL SCHOOL, NOIDA
Class : Class 4

Ans 11:

TANVI D MARGHADE from PODAR INTERNATIONAL SCHOOL POWAI, MUMBAI
Class : Class 6

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Netraa Shah from FAIPS, Kuwait
Subject :IMO    Class : Class 4

Ans 1:

Ryan Majumdar from Epistemo , Hyderabad
Class : Class 4
B

Ans 2:

Netraa Shah from FAIPS, Kuwait
Class : Class 4
How to identify the left and right side referred in question?

Ans 3:

vineet8026@gmail.com from dps, Doha
Class : Class 1
C

Ans 4:

Dhyana Patolia from SSGIT godhra, Godhra
Class : Class 4

Ans 5:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 5
Whoever gets this question wrong should fail in level 2 mathematics

Ans 6:

Agriye Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 7
b

Ans 7:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
a

Ans 8:

MANDAR PALKAR from KV DRDO, Bengaluru
Class : Class 2

Ans 9:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
B

Ans 10:

Laiba from Olive International School , Doha
Class : Class 4
Class:Yes

Ans 11:

Shreeraj from ISWK, Muscat, Muscat
Class : Class 4
Option B

Ans 12:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
i've done (B)

Ans 13:

Mugdha O M from National Public School, Bengaluru
Class : Class 8
oh its not correct question?

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ahana dalmia from vibgyor high, MUMBAI
Subject :IMO    Class : Class 6

Ans 1:

Raja Satwik Prasad Tetali from DELHI PUBLIC SCHOOL BANGALORE NORTH, Bengaluru
Class : Class 8

Ans 2:

Ariesh from Krishnasamy Memorial Matriculation Higher Secondary School, tamilnadu
Class : Class 7
D

Ans 3:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 9

Ans 4:

ahana dalmia from vibgyor high, MUMBAI
Class : Class 6
hey! last time it was a

Ans 5:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 9
D ,FIRST CALCULATE THE SUM

Ans 6:

PRANAV from DELHI PUBLIC SCHOOL, NTPC DADRI GAUTAM BUDH NAGAR
Class : Class 6
its d becuse in red part has 6 and the total is 20 and the fraction is 6/20

Ans 7:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
But this time it is d

Ans 8:

Raja Satwik Prasad Tetali from DELHI PUBLIC SCHOOL BANGALORE NORTH, Bengaluru
Class : Class 8

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Akriti ANannd from DPS Gaya, GAYA
Subject :IMO    Class : Class 7

Ans 1:

Souradeep Saha from DON BOSCO SCHOOL PARK CIRCUS, Kolkata
Class : Class 9

Ans 2:

Avinash from Titan School, Hosur
Class : Class 7
d

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ahana dalmia from vibgyor high, MUMBAI
Subject :IMO    Class : Class 6

Ans 1:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
ahana dalmia, they said 8 LESS than -24 which is -32 not 8 MORE than -24

Ans 2:

DEBOSMITA GARAI from G.D.BIRLA CENTRE FOR EDUCATION, kolkata
Class : Class 6
Correct ans is A......agree with anika..

Ans 3:

DEBOSMITA GARAI from G.D.BIRLA CENTRE FOR EDUCATION, kolkata
Class : Class 6
ahana read the sum correctly...plz.....

Ans 4:

Samarjeet Singh Rathore from Gyanfort School, Farrukhabad
Class : Class 6
it d

Ans 5:

ahana dalmia from vibgyor high, MUMBAI
Class : Class 6
how is this a it is c

Ans 6:

sakshi from podar international school , mumbai
Class : Class 1
?it also can be d......hy a??

Ans 7:

Anika Saha from New Town School, KOLKATA
Class : Class 6
the answer is A

Ans 8:

ahana dalmia from vibgyor high, MUMBAI
Class : Class 6
it is -16 not -32

Ans 9:

Advik Dixit from ryan international school sanpada, navi mumbai
Class : Class 4
Correct is A ...... as most of you :D

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Sharanya aggarwal from Presidium, Gurgaon
Subject :IMO    Class : Class 4

Ans 1:

ketan from MLZS , REWARI
Class : Class 4
I is not require in front of X ,when after X we have IV

Ans 2:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4
C is the correct answer I is not required

Ans 3:

sanskaar mishra from American International School, Greater Noida
Class : Class 4

Ans 4:

Niharikaa Pande from BILLABONG HIGH INTERNATIONAL SCHOOL MALAD, Mumbai
Class : Class 6

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 8
C is the correct answer because IXIV is not considered as a roman numeral

Ans 6:

Vanishi Jain from DELHI PUBLIC SCHOOL, Noida
Class : Class 4
IXIV is not a roman numeral

Ans 7:

Rozan nirmali from GIIS, japan
Class : Class 5
Ya, the correct answer is option C.

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ADITI DUBEY from NARAYANA OLYMPIAD SCHOOL, Mumbai
Subject :IMO    Class : Class 6

Ans 1:

arnav santosh shinde from new english school , landewadi
Class : Class 4
correct answer is 'c'

Ans 2:

ABHIRAM from chirec, HYDERABAD
Class : Class 10

Ans 3:

Nimish Khandekar from SNBP International School, Pune
Class : Class 8
the answer is b only because the second question is, 'the sum of two numbers is ALWAYS smaller than their product.' this statement is definitely false because if we take example of 2 and 2, their product is equal to their sum and if we take 1 and 1, then its product is smaller than its sum. then according to the statement above, answer should be false which should be answer 'B'

Ans 4:

Nimish Khandekar from SNBP International School, Pune
Class : Class 8

Ans 5:

Prabhav Akar from Cambridge Court High School, Jaipur
Class : Class 1

Ans 6:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Ya. ONLY B is correct. Bcz 2 x 2 = 4 and 2 2 = 4. Product is equal. And 1 x 1 = 1 and 1 1 = 2. Product is smaller. 2 x 1 = 2 and 2 1 = 3. Product is smaller. As they have given "2 WHOLE numbers" so the same whole number can be used both times. They didn't tell that there is no repetition. So ONLY B IS CORRECT!

Ans 7:

The Tuition Master from oakridge, hyderabad
Class : Class 7
Option (B) is correctAs it is telling that sum of 2 whole numbers is ALWAYS less than the product but if we see 2 2=4 and 2x2=4 the both the answers are equal

Ans 8:

Nimisha Tambe from Narayana vidyalayam, Nagpur
Class : Class 8
The answer is BBecause if we take 1 2=3 but 1x2=2 which is less than the product. Statement ll is false.

Ans 9:

Rohan Naik from VIBGYOR high, Bangalore
Class : Class 6

Ans 10:

Pranit Sinha from Montfort School, Roorkee, Haridwar
Class : Class 6
The answer is C.Even if the answer is B then how???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

Ans 11:

NIVED PRAKASH NAIR from SARVODAYA, THIRUVANANTHAPURAM
Class : Class 8
In I) 0/1 is 0. So the first statement given in the Question is false.

Ans 12:

Snigdha Singh from Gregorios High School, Mumbai
Class : Class 7
ya its B. I thought it was B but then I got confused because it said 2 numbers. and I thought it meant 2 different numbers. but there is nothing like that. it can be the same number also.

Ans 13:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
the correct answer is C

Ans 14:

SrisaranN from National school, Bangalore
Class : Class 8

Ans 15:

Tanmay 2009 from MVN Aravali Hills, Faridabad
Class : Class 6
Yes, the answer is C. How is it B ???

Ans 16:

Anika Saha from New Town School, KOLKATA
Class : Class 6
First it says 'A', next it says 'B'. what is the correct answer

Ans 17:

Ojas from Sulochana Natu Vidya Mandir, Bhartiya Vidya Bhavan, Pune
Class : Class 7
1st statement is wrong ,If we say that dividend is 0 and divisor is 5 it will be written as 0÷5=0 as 5×0=0 SO D IS CORRECT

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Aditya Sai Vemparala from Amanora school, Pune
Subject :IMO    Class : Class 7

Ans 1:

Yaiphabi from dddd, ddd
Class : Class 7

Ans 2:

Aahan Jain from ,
Class : Class 1

Ans 3:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 10
jkkkgjhh

Ans 4:

Ishaan from NPSI, Singapore
Class : Class 7
e

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