International Maths Olympiad Forum By SOF Olympiad Trainer

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Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 6

Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 6
sir could I get an easier method of solving this question?

## Ans 2: (Master Answer)

Class : Class 1

The correct answer is D. Subject :IMO    Class : Class 4

## Ans 1:

Class : Class 4
B 6

Subject :IMO    Class : Class 6

## Ans 1: (Master Answer)

Class : Class 1

The correct answer is B.

19-6+2=28+?-15

Let the missing number be x.

Then ,19 - 6 + 2 = 28 + x - 15

=> x = 19 - 6 + 2 - 28 + 15 = (19 + 2 + 15) - (6 + 28) = 36 - 34 = 2

Subject :IMO    Class : Class 6

## Ans 1: (Master Answer)

Class : Class 1

The correct answer is B. There is no pair in the alternate digits starting from 6.

Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 7

## Ans 1: (Master Answer)

Class : Class 1

The correct answer is C.

The line segment joining a vertex of a triangle to the midpoint of its opposite side is called a median of the triangle.
The perpendicular line segment from a vertex of a triangle to its opposite side is called an altitude of the triangle.
A triangle has three altitudes and three medians.

Subject :IMO    Class : Class 10

## Ans 1: (Master Answer)

Class : Class 1

The correct anser is D.

Circumference = 24πm, Width of track= 2 m

As we know that circumference = 2πr
Therefore, 2πr = 24π

r = 12m

Now, Radius of outer circle = Radius of inner circle + Width of the track = 12 m + 2 m = 14 m
Again, Circumference of outer circle = 2πR = 2 X 3.14 X 14 = 88 m

Hence, the quantity of wire required to surround the path completely is 88 m.

Subject :IMO    Class : Class 5

Class : Class 6

## Ans 2:

Class : Class 5
CD IS ONLY consucutive so only ans A

## Ans 3:

Class : Class 5
If you see the solution , it says it is CD but in answers it says D

## Ans 4:

Class : Class 5
I think it is D .. A related F and B to E then next CD so on

## Ans 5:

Class : Class 6
Answer A , C D is the correct answer !!!!!!

Class : Class 5

## Ans 7:

Class : Class 5
Yes. One answer, different solution. Too many mistakes.

Class : Class 5

## Ans 9:

Class : Class 5

Subject :IMO    Class : Class 3

Class : Class 4
15 kg

## Ans 2:

Class : Class 5
Answer c cause there are four balls in each and 45 +45 =90,90/6=15

Class : Class 3
15kg