International Maths Olympiad Forum By SOF Olympiad Trainer - Page 508

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Radhika Karve from Vibgyor High, Pune

Subject :IMO Class : Class 9

If E is an event associated with an experiment, then

AP (E) > 1
B - 1 < P (E) < 1
C0 ≤ P (E) < 1
DNone of these

The probability of an event can be equal to 1 in case of a definite event, so the answer cannot be (C) as it does not include 1 in its bounds. Therefore, the answer must be (D)

Ans 1:

Abhinav Is from kv ekm, Kochi

Class : Class 9

yesit can also be 1

Ans 2:

Pratham gupta from St. Marks Sr. Sec. Public School, Meera Bagh, New Delhi

Class : Class 9

Ans 3:

Pratham gupta from St. Marks Sr. Sec. Public School, Meera Bagh, New Delhi

Class : Class 9

It can be 1 also

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Tapovan Sanskardham Vidhyalaya from Tapovan Sanskardham Vidhyalaya, Navsari

Subject :IMO Class : Class 6

Match the following.

Column I	Column II
(i) 100 crores	(P) 1 thousand
(ii) 10 lakhs	(Q) 1 lakh
(iii) 100 thousands	(R) 1 billion
(iv) 100 tens	(S) 1 million

A (i)→ (P), (ii) → (Q), (iii) → (S), (iv) → (R)
B (i)→ (R), (ii) → (S), (iii) → (P), (iv) → (Q)
C (i)→ (R), (ii) → (S), (iii) → (Q), (iv) → (P)
D (i)→ (P), (ii) → (S), (iii) → (Q), (iv) → (R)

blah blah

Ans 1:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 2:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 3:

Kushal from Chirec, Hyderabad

Class : Class 7

The answer is b

Ans 4:

Navya from Gyanshree, Noida

Class : Class 6

what the sigma r u all talking about?

Ans 5:

Prithwanko Ghosh from Kendriya Vidyalaya IIT Kanpur, Kanpur

Class : Class 7

Should be C

Ans 6:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 7:

Pranit Sinha from Montfort School, Roorkee, Haridwar

Class : Class 6

The answer is C, in the following way:(i)100,00,00,000->1,000,000,000(ii)10,00,000->1,000,000(iii)100,000->1,00,000(iv)100*10->1,000

Ans 8:

shreyash rawat from podar international school, pune

Class : Class 8

Ans 9:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 10:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 11:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 12:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Ans 13:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune

Class : Class 7

Post Your Answer

Tanmay 2009 from MVN Aravali Hills, Faridabad

Subject :IMO Class : Class 4

Shobhit rented a toy car for his daughter for 4 hours. How much did he pay?

A Rs. 55
B Rs. 65
C Rs. 75
D Rs. 85

Ans 1:

Karthik Tare from Chirec, Hyderabad

Class : Class 6

Ans 2:

Arnav Mutha from St Joseph English Medium school , Shirur

Class : Class 3

Options are wrong the correct answer is 90

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TEJASWANI from TIME SCHOOL, HYDERABAD

Subject :IMO Class : Class 4

Which is the largest 3 digit number ?

Ans 1:

lekhaj from NARAYANA, VISAKHAPATNAM

Class : Class 4

999

Ans 2:

lekhaj from NARAYANA, VISAKHAPATNAM

Class : Class 4

999

Ans 3:

TEJASWANI from TIME SCHOOL, HYDERABAD

Class : Class 7

999

Post Your Answer

TEJASWANI from TIME SCHOOL, HYDERABAD

Subject :IMO Class : Class 4

oidejo33r2[pe21o[-]=

Post Your Answer

Jay Kore from THE KALYANI SCHOOL, PUNE

Subject :IMO Class : Class 3

What is the weight of ?

A 60g
B 50g
C 30g
D 40g

Ans 1:

ANSHUL TANWAR from ST TERESA CONVENT SCHOOL GHAZIABAD, NOIDA

Class : Class 3

please check balance pic II one which is wrong.

Ans 2:

2021339vedaa@dpsnoida.co.in from dpsnoida, Noida

Class : Class 3

Picture not at all clear. How can anyone know it's 285!!

Ans 3:

Anaya Prakash from Jayshree Periwal High school , Jaipur

Class : Class 4

Picture is not clear

Ans 4:

Saiansh Sharda from Saupins School, Chandigarh

Class : Class 4

Ans 5:

Navya Jain from Neerja Modi School, Jaipur

Class : Class 3

Picture is not so clear , so we can not see it properly.

Ans 6:

Naisha Gupta from DPS School, Khajaguda, Hyderabad

Class : Class 3

The picture is not clear. I zoomed in and tried to see but I still could not.

Ans 7:

Navansh Singla from Strawberry Fields High school , Chandigarh

Class : Class 5

225 and 290 =65 which cannot be divisible exactly and their option is not there

Ans 8:

Rijrashwa Sreejith from Devamatha C M I Public School, Thrissur

Class : Class 4

Divisions are unequal at different parts of the scale

Ans 9:

Vedansh Deewan from Stemfield International School , Jabalpur

Class : Class 4

How on earth am I supposed to know that the 2nd picture has 285g It is clearly not confirmed

Ans 10:

Pragnay Priyadarshi from Quantum Leap School, HYDERABAD

Class : Class 7

Picture is not so clear, blurring effect. Please upload high resolution image.

Ans 11:

Sai Lasyapriya Dhulipala from Ganges Valley, Hyderabad

Class : Class 3

Picture is not clear and the readings are not at equal measurements

Ans 12:

Shreetama Chakraboty from DAV PUBLIC SCHOOL, NAVI MUMBAI

Class : Class 3

PIC not clear.....

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Harshit Jha from Sri venkateshwar international School, New Delhi

Subject :IMO Class : Class 5

The given figure is made up of five identical squares and RQ = QU = UV = AS = SB = BT = CD = DE = EF = GH = HI = IJ. Find the perimeter and area of the figure.

A95 cm, 300 cm²
B90 cm, 240 cm²
C110 cm, 300 cm²
D96 cm, 180 cm²

That was a tricky question

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OISHIK KUNDU from Delhi Public school North kolkata, baranagar

Subject :IMO Class : Class 5

There are 75 people at a party. 25 of them are men.
If of them are women, then find the fraction of children in the party.

A5/7
B7/15
C8/15
D3/14

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