Question

Laura has 7 apples.
she eats 1,2 or 3 apples.
how many apples could be left?

Answer 1

Answer:

6,5 or 4 because they said she ate 1,2 or 3 from 7 apples and when we subtract 1,2 or 3 from 7 the answer is 6,5 or 4

Answer 2

Given : Laura has 7 apples.

she eats 1,2 or 3 apples.

To Find : how many apples could be left?

Solution:

Apples available = 7

Apples eaten  =  1,2 or 3 apples.

Apples left = Apples available - Apples eaten

So there can be 3 cases

case 1 :  

1 Apple is eaten  

=> Apples left = 7 - 1 = 6

case 2 :  

2 Apples  are  eaten  

=> Apples left = 7 - 2 = 5

case 3 :  

3 Apples are eaten  

=> Apples left = 7 - 3 = 4

Hence apples left can be   4 , 5 or 6

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