aimlockfire1 wrote:

Hal bought walnuts at 5 for $1 and apples at 4 for $1.He spent a total of $19.50 . He sells both at 20 for $5 and as a result gains $3 .How many walnuts did Hal buy ?

a)50

b)45

c)60

d)80

e)55

Let me try this,

5 for $1 and apples at 4 for $1.He spent a total of $19.50 this statement clearly tells that for 0.5 he buys apple(So that quantity can be integer.

Lets go with options : 50 walnuts

10$ Remaining amount -- 9.5 so total apple he buys = 38

total items 50+38 =88 he sells 20 for 5$ mean 4 for 1$

.So he earns == 22 dollors Diffrence 22-19.5 == 2.5 -- Wrong Answer.

2nd options 45 walnuts, 9$ for walnuts

10.5$ for apple 42 apple. so total quantity == 87 if he sells 4 for 1$. 21.75 == Diffrence less than 3$.

3rd choice, 60 walnuts, 12$ for walnuts.

7.5$ for apple -- 30 apples. total 90 if he sells 4 for 1$. 22.5so diffrence == 3$.

4th choice, 80 walnuts, 16$ for walnuts

3.5 for apples 14 apples. 94 total. if sells at 4 per 1$. 23.5 diffrence greater than 3.

5th choice 55 walnuts 11 $ for walnuts.

8.5 for apples, 34 apples. 89 in total. if sells at 4 per 1$. 22.15 diffrence less than 3.

So correct choice is C.