International Maths Olympiad Forum By SOF Olympiad Trainer

Suparn Agrawal from Delhi Public School Kashipur, kashipur

Subject :IMO Class : Class 5

Tom’s weight is 1/7th of his grandfather and 1/4th of his mother.
What fraction is Tom’s mother’s weight of his grandfather?

A4/7
B3/7
C3/4
D7/12

Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is A.

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Kuldeep Battula from Deens Academy, Bengaluru

Subject :IMO Class : Class 7

The diameter of the big circle is divided into 5 parts. These five parts are the diameters of new circles as shown. If the circumference of the big circle is 30 cm, then the sum of the circumferences of the 5 smaller circles is

Asmaller than 30 cm
B30 cm
C45 cm
D60 cm

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Ans 1:

Paul T Mathew from Presidency School, Kasturinagar, Bangalore

Class : Class 7

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varshith from Sri Sundaravalli Memorial School, Perungalathur

Subject :IMO Class : Class 4

The given graph shows the weight of 5 children.

If Naina's weight increases by 5 kg, then what is the total weight of the five children?

(A) 135 kg

(B) 140 kg

(C) 145 kg

(D) 155 kg
if f 25 30 30 35 20 and naina's weight increases by 5 kg then it is 140 kg .why did you give c=145 kg

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Ans 1:

Shraddha from Delhi public school, Hyderabad

Class : Class 4

The answer is C only

Ans 2:

aaryan chandrakant sonawane from nanded city public school, Pune

Class : Class 6

B is the answer means 140

Ans 3:

varshith from Sri Sundaravalli Memorial School, Perungalathur

Class : Class 6

b=140 kg

Ans 4:

aaryan chandrakant sonawane from nanded city public school, Pune

Class : Class 6

B is the answer means 140

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Rcis from rcis, Bengaluru

Subject :IMO Class : Class 6

Find the figure from the options which will continue the series established by the problem figures.

(A)

(B)

(C)

(D)
the answer according to me should be option d instead of option c

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Ans 1:

Debaditya CHAKRABARTI from Shishya beml public school, Bengaluru

Class : Class 7

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Preety Sinha from DPS Gurgaon, Gurgaon

Subject :IMO Class : Class 3

In the figure below, a large rectangle has a length of 60 meters and a width of 20 meters. A smaller rectangle has a length of 30 meters and width of 20 meters. Which statement is correct?

AThe perimeter of the large rectangle is twice the perimeter of the small rectangle.
BThe perimeter of the large rectangle is equal to the perimeter of the small rectangle.
CThe perimeter of the large rectangle is 30 meters more than the perimeter of the small rectangle.
DThe perimeter of the large rectangle is equal to 160 meters and the perimeter of the small rectangle is equal to 100 meters.

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Ans 1:

Dhairya Godbole from KLE Eng Medium School, SOLAPUR

Class : Class 6

D is the right answer. Large Rectagle - 60+60+20+20 = 160 Small - 30+30+20+20 = 100

Ans 2:

Darsh Vijay from The Orbis School, Pune

Class : Class 5

Ans 3:

Aryan Goyal from DPS , Dwarka, New Delhi

Class : Class 3

aaa

Ans 4:

Aditi Shiv Shankar Jaiswal from Delhi Public School Jeddah, Jeddah

Class : Class 4

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Gaurav Modi from DELHI PUBLIC SCHOOL , RAIPUR, Raipur

Subject :IMO Class : Class 9

In the given question, there is a set of five figures labelled P, Q, R, S and T called the Problem Set. Figure (R) contains a question mark. Select a suitable figure from the options which will substitute this question mark so that a series is formed by the figures P, Q, R, S and T.

(A)

(B)

(C)

(D)
Solution kya hai

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Ans 1:

Aryan S Kumar from Carmel School, Jorhat

Class : Class 9

Ans :C

Ans 2:

Esther Vajra from Dr. K.K.R. Gowtham School, Visakhapatnam

Class : Class 9

C

Ans 3:

Ashish from DPS North, Bengaluru

Class : Class 9

answer is C

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Gaurav Modi from DELHI PUBLIC SCHOOL , RAIPUR, Raipur

Subject :IMO Class : Class 9

(A) 7/18

(B) 40/54

(C) 2/3

(D) 1/6
I think ans should be c

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is A.

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Manpreet Pahwa from ,

Subject :IMO Class : Class 5

One third of the members of a badminton club are boys. Which of the following bar graphs is the correct representation of the members of the club?

A

B

C

D

Why is it wrong ?

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Ans 1:

Dheer Pandey from Sentia The Global School, Hyderabad

Class : Class 10

D

Ans 2:

Madhu from CHIREC, Hyderabad

Class : Class 8

d

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Sohan from NPS HSR, Bengaluru

Subject :IMO Class : Class 5

Kashish went shopping with Rs 500. She spent 1/4 of her money on clothes and 1/3 of the remaining money on footwears. Find the money left with her after shopping. 

A Rs 220
B Rs 290
C Rs 300
D Rs 250 

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

The correct answer is D.

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Aahana Nischal from APL Global, Chennai

Subject :IMO Class : Class 6

In the 20th century (1901 – 2000), how many years are divisible by 6?

A15
B16
C17
D24

help me to solve this

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Ans 1:

sriniwas mishra from ,

Class : Class 6

hello b

Ans 2:

Avni from Dbs, firozpur

Class : Class 7

answer is c . subtract 2000 -1901 = 99 99/6 = 16.5 16.5 round off = 17

Ans 3:

Avni from Dbs, firozpur

Class : Class 7

thinkh between b and c

Ans 4:

Chaitanya L K from SKCHEC, bangalore

Class : Class 8

Arnav, how did you solve..?

Ans 5:

arnav gautam from MAHARANA MEWAR Public School, Udaipur

Class : Class 6

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