Apple vendor

[GmatKiss]

A vendor sells 60 percent of apples he had and throws away 15 percent of the remainder. Next day he sells 50 percent of the remainder and throws away the rest. What percent of his apples does the vendor throw?

a)17
b)23
c)77
d)None of these
e)75

[kmittal82]

Since we are dealing in %, lets assume he had 100 apples to begin with

>A vendor sells 60 percent of apples
Sold = 60

>throws away 15 percent of the remainder
thrown =15x40/100 = 6

Remainder at the end of the day = 100 - 66 = 34

>Next day he sells 50 percent of the remainder and throws away the rest.
50% of remainder sold means he sold 17, and threw away 17

So, (A)

[gmatboost]

We need to add 17 to the 6 from before to get 23.

[GmatKiss]

OA:B