Question

Ayesha has 50 pictures. If she gives half of these pictures to her friend Paula and 2/5 of the remaining pictures to her mother, how many pictures does she still have?

Answer 1

Answer: 15

Step-by-step explanation:

Ayesha starts with 50 pictures. She gives half, or 25, to Paula. So Ayesha still has half leftover, meaning she has 25 pictures now.

Take 2/5 of this to get 2/5*25 = 0.4*25 = 10. So we know that Ayesha gave her mother 10 pictures, leaving 25-10 = 15 left over.

An alternative viewpoint is to note that 2/5 and 3/5 add to 5/5 = 1, so if Ayesha gives 2/5 of her pictures, then she'll have 3/5 left over. Therefore,

3/5*25 = 0.6*25 = 15

which is another way to get to the answer.