Question

A boy eats 25% of the cake and gifts away 35% of it to his friends what percentage of is still left with him

Answer 1

Answer:

40% of the cake is left.

Step-by-step explanation:

Let us assume the total volume of the cake present is 100%

First he eats 25% of the cake.

Remaining Portion of cake after eating : 100% - 25% = 75%

Now he gifts 35% of cake to this friend.

So, 75% - 35% = 40%

Hence the remaining portion of cake is 40%

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Answer 2

Solutions :-

Given :
A boy eats 25% of the cake and gifts away 35% of it to his friends.

Let the volume of a cake be x

Cake eaten by a boy = x - 25% of x
= x - 0.25x
= 0.75x

Remaining portion of cake = 0.75x - 35% of x
= 0.75x - 0.35x
= 0.40x

Percentage of remaining portion of cake = (0.40x × 100)/x %
= 40x/x %
= 40%

Hence,
40% of the cake is left.