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Subject :IMO    Class : Class 3

Use the given figure and answer the question:

The value after deducting the mass of two balls from dogs mass will be equal to

A20 kg
B30 kg
C40 kg
D10 kg

very easy question know

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
Should be 20 Kg. The mass of 3 balls together is 15 kg implies that weight of one ball is 5 kg. Now dog is equal to 30 kg since there are 6 balls on balance. So deducting mass of two balls which equals (5+5=10 kg), it will be 20 kg.

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