International Maths Olympiad Forum By SOF Olympiad Trainer - Page 84

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
d

Ans 2:

Class : Class 4

Ans 3:

Class : Class 2

Ans 4:

Class : Class 10

Ans 5:

Class : Class 8
Option D

Ans 6:

Class : Class 8
Option D

Ans 7:

Class : Class 5

Ans 8: (Master Answer)

Class : Class 1

Ans 9:

Class : Class 4
Ques is wrongwhen answer is d they've told answer is b

Ans 10:

Class : Class 4
sry they've given a

Ans 11:

Class : Class 8
Option D

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
Sorry, the answer is D.

Ans 2:

Class : Class 5
Answer is C as the question says the combinations of 1 notebook and 1 pen from 5 notebooks and 3 pens, which is 5*3=15.

Ans 3:

Class : Class 4
c

Ans 4:

Class : Class 5
Sorry, the answer is D.

Ans 5:

Class : Class 7
D) 15

Ans 6:

Class : Class 2
a bit confusing

Ans 7:

Class : Class 7
its confusing, actually it is supposed to have 5 different notebooks and 3 different pens so 5*3=15

Ans 8:

Class : Class 5

Ans 9:

Class : Class 4

Ans 10:

Class : Class 5

Ans 11:

Class : Class 4
The answer is d.

Ans 12:

Class : Class 5
to get the answer, just do 5 5 5=15

Ans 13:

Class : Class 7
give solution

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
Answer is D as in option A, 14/100 is shaded, which means 7/50 is shaded. In option B, 22/100 is shaded, which means 11/50 is shaded. In option C 29/100 is shaded. In option D, 20/100 is shaded, which means 1/5 is shaded.

Ans 2:

Class : Class 4

Ans 3:

Class : Class 7
d) 20/100 because 20/100 is equivalent fraction of 1/5

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
Answer is C as the question says that Sid wakes up at 6:10 a.m., which is 6 hours 10 minutes of morning, next, the question says he takes 40 minutes to get dressed, 10 minutes to eat breakfast and 25 minutes to reach school, which means 45 min+10 min+25 min=80 min=1 hr 20 min. Then, 6:10 a.m.+1 hr 20 min=7:30 a.m.

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9
The correct answer is D

Ans 2:

Class : Class 6
oh! yeah it's D

Ans 3:

Class : Class 9
The correct answer is D

Ans 4:

Class : Class 4
Option D

Ans 5:

Class : Class 4
Easy! It's D

Ans 6:

Class : Class 9
The answer is D

Ans 7:

Class : Class 7

Ans 8:

Class : Class 4
missing is 9cm and 18cm which goes accoording to D!

Ans 9:

Class : Class 6
The correct answer is D

Ans 10:

Class : Class 3
It’s obviously D!!!

Ans 11:

Class : Class 5
Answer is D as the question says to find the perimeter, which is (7*2) cm+4 cm+(9*2) cm+15 cm+8 cm+5 cm+(4+5+9) cm=14 cm+4 cm+18 cm+15 cm+8 cm+5 cm+18 cm=82 cm.

Ans 12:

Class : Class 7
D) 82 cm

Ans 13:

Class : Class 5
d

Ans 14:

Class : Class 8
ans is d

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
The answer is C

Ans 2:

Class : Class 5

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
B) 4789

Ans 2:

Class : Class 4
The answer is b}4789

Ans 3:

Class : Class 4
Answer is B),how? Because the first line mentions that the forth digit is the greatest digit which is nine so option A) and option C) cannot be the answer. The second line mentions that the first digit is double of the number two so option D) cannot be the answer. So the answer is B)

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
The answer is A

Ans 2:

Class : Class 6
the ans is a

Ans 3:

Class : Class 4
The answer is A

Ans 4:

Class : Class 4
The answer is A

Ans 5:

Class : Class 4
C

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8

Ans 2: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :IMO    Class : Class 4

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