International Maths Olympiad Forum By SOF Olympiad Trainer - Page 108

User Forum

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8
C is answer . add all the marbels of three bars and sub from 75

Ans 2:

Class : Class 7
CORRECT!!!

Post Your Answer

Subject :IMO    Class : Class 4

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
Heads ( Lions + Peacocks) = 15, No. of Legs = 25 +15 = 40. Since total legs were 40 no. of lions has to be less than 10 (because 10 x 4 legs = 40 which means zero peacock, which is not possible...) . so if we take 5 lions and 10 peacocks, total heads = 15 & total legs = 5 x 4 + 10 x 2 = 40 legs. Thus the answer is 5 peacocks were more than lions.

Ans 2:

Class : Class 10
Answer : D
Solution
Let number of peacocks be p
Let number of lions be l
Number of legs = 15
Number of heads = 15 + 25 = 40
p + l = 15
2p + 4l = 40
Solving the above equations
p = 10 , l = 5
So there are 5 more peacocks than lions.

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
the answer is 19803 because you should find the difference between 14365-(5876-3243)=11732 23512-(7584-3875)=19803

Ans 2:

Class : Class 5
19803

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8
d-31

Ans 2:

Class : Class 9

Ans 3:

Class : Class 4
D[31

Ans 4:

Class : Class 4
d-31

Ans 5:

Class : Class 4
What kind of question? What is the pattern? How do youSolve it?

Ans 6:

Class : Class 8
d-31

Ans 7:

Class : Class 4
this is very difficult

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8
it is 8

Ans 2:

Class : Class 4
It's B

Ans 3:

Class : Class 8
ITS B

Post Your Answer

Subject :IMO    Class : Class 4

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 10
Thanks for the solution

Ans 2:

Class : Class 6
thanks for the answer

Ans 3:

Class : Class 10
Thank you for pointing out the mistake. We have corrected the sequence now.
Water in the jug = 1/12
Water added in the jug = 5/6
Total water = 1/2 + 5/6 = 11/12
Water overflowed = 1/4
Capacity of jug = 11/12 - 1/4 = 8/12 = 2/3 L

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
Answer: 1, Because smallest 5 digit odd number is 10001. Therefore difference between thousandth place digit and ones place digit is 1-0=1. Answer: (C)

Ans 2:

Class : Class 4
It's A only

Ans 3:

Class : Class 6
oh thanks by mistake instead of 10003 i thought 11113

Ans 4:

Class : Class 7
The 2nd smallest odd 5 digit number is 10003. So difference between the ones place and thousands is 3-0=3. Ans. 3. which is option A

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
The figure is not clear on right hand side it is actually 800+500+500= 1800 kg left side = 9 balls so 1 ball weight is 1800 /9 = 200 kg 5 balls = 1000 kg answer D

Ans 2:

Class : Class 10
Answer: D

Solution
The weight of 9 balls = 500 + 500 + 800 = 1800 g
Weight of 1 ball = 200 g
Weight of 5 balls = 1000g
PS: The figure may not be clear. We are replacing it with a more clear figure.

Ans 3:

Class : Class 9
[D] 1000g

Ans 4:

Class : Class 5
figure at the top was not clear it should be clear so that students can gain marks in a justified way

Post Your Answer