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.