International Maths Olympiad Forum By SOF Olympiad Trainer - Page 642
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Yashini from Velammal vidhyala school, Madurai
Subject :IMO    Class : Class 4

Ans 1:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8
3/10

Ans 2:

Kaushik from pebble, Bangalore
Class : Class 5
3/20

Ans 3:

varghese j veliyath from Mar Athanasius International School , Cochin
Class : Class 3

Ans 4:

Pranika Thakkar from Jamnabai Narsee School , Mumbai
Class : Class 5

Ans 5:

RAJWARDHAN from APJEE, MUMBAI
Class : Class 4
3/10

Ans 6:

Anushka kumar from DPS paradip, odisa
Class : Class 9
2/8 (=10/40) in the morning left only 6/8 3/5 of 6/8 = 18/40 leftover milk is = 1-(10/40) - (18/40) = 12/40 = 3/10

Ans 7:

from , Allahabad
Class : Class 6
It is 3/20 because- if you add 2/8 and 3/5 =17/20 which he drank =20/20-17/20=3/20

Ans 8:

shilpi from euroschool,Thane, thane
Class : Class 4
Answer is option B or 3/10

Ans 9:

Admin from SOF, Noida
Class : Class 10
Answer : B
Milk left for the evening = 1 - 2/8 = 6/8
Milk consumed in the evening = 3/5 of 6/8 = 3/5 x 6/8 = 18/40
Total milk consumed = 2/8 + 18/40 = 28/40
Milk left = 1 -28/40 = 12/40 = 3/10

Ans 10:

Avyukt D from The Kalyani School , Pune
Class : Class 8
blah blah blahwhatever

Ans 11:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
3/20Thank you Priti Srivastav

Ans 12:

Lekh goyanka from School of scholars, Malkapur
Class : Class 4
3/20 is correct

Ans 13:

Avyukt D from The Kalyani School , Pune
Class : Class 8

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Adiammu from RGS, USA
Subject :IMO    Class : Class 7

Ans 1:

anmol from pallavi model school,boduppal, Hyderabad
Class : Class 7
a[72]

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Arihant Jain from Indo American Public School, Udaipur
Subject :IMO    Class : Class 8

Read the following information carefully to answer the question given below:
The sum of the incomes of A and B is more than that of C and D taken together. The sum of the incomes of A and C is the same as that of B and D taken together. Moreover, A earns half as much as the sum of the incomes of B and D.
If A's income be Rs. 80,000 per annum and the difference between the incomes of B and D be the same as A's income, B's income is _____.

A Rs. 40,000
B Rs. 60,000
C Rs. 80, 000
D Rs. 1,20,000

Ans 1:

Anidroid ,Aniruddha from Modern DPS, Faridabad
Class : Class 8
D part

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Arihant Jain from Indo American Public School, Udaipur
Subject :IMO    Class : Class 8

Ans 1:

Prisha Singhal from Springdales School, Pusa Road, New Delhi
Class : Class 10

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Arihant Jain from Indo American Public School, Udaipur
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Arihant Jain from Indo American Public School, Udaipur
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Arihant Jain from Indo American Public School, Udaipur
Subject :IMO    Class : Class 8

Ans 1:

PRAFUL from KENDRIYA VIDYALAYA MYSORE , MYSURU
Class : Class 8

Ans 2:

Bhavika Rakesh from VIBGYOR HIGH BALEWADI, Pune
Class : Class 9

Ans 3:

Ananya Singh Baghel from DPS, NASIK , India
Class : Class 8
this was an easy one

Ans 4:

Senthil from Einstien Public School, Coimbatore
Class : Class 9
First add the numbers in opposite and square it. Do the same for all the three pairs, Finally add the three results. You will get the number at the centre Example: 1st one 1+6= 7 7^2 = 49 9 + 4 = 13 13 ^ 2 = 169 3+ 5 = 8 8^ 2 = 64 49+169+64 = 282 All the best...............

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Arihant Jain from Indo American Public School, Udaipur
Subject :IMO    Class : Class 8

Two rows of numbers are given. The resultant number in each row is to be worked out separately based on the following rules and the question below the rows of numbers is to be answered. The operations of numbers progress from left to right.
Rules
I. If an odd number is followed by a two-digit even number then they are to be added.
II. If an odd number is followed by a two-digit odd number then the second number is to be subtracted from the first number.
III. If an even number is followed by a number which is a perfect square of a number then the second number is to be divided by the first number.
IV. If an even number is followed by a two-digit even number then the first number is to be multiplied by the second number.

What is the difference between the resultant of the first set of numbers and the second set of numbers?

A 106
B 118
C 210
D 222

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

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anam aziz from st. francis senior secendory school, Bilaspur
Subject :IMO    Class : Class 6

Two rows of numbers are given. The resultant number in each row is to be worked out separately based on the following rules and the question below the rows of numbers is to be answered. The operations of numbers progress from left to right.

Rules :

(i) I f a two-digit odd number is followed by a two-digit odd number they are to be added.

(ii) I f a two-digit even number is followed by a two-digit odd number which is a perfect square, the digit number is to be subtracted from the odd number.

(iii) If a three-digit number is followed by a two-digit number the first number is to be divided by the second number.

(iv) I f a prime number is followed by an even number the two are to be added.

(v) I f an even number is followed by another even number the two are to be multiplied.

If X is the resultant of the first row, what is the resultant of the second row?

(A) 192

(B) 128

(C) 132

(D) 144
Please tell me solution

Ans 1:

Sushil Kumar from dpsnoida, Noida
Class : Class 7
128

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Adiammu from RGS, USA
Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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