Question

I don't understand what you have to do in this question. So, can someone please help?

The prices of different types of toy cars vary from $1.25 to $2.45 when tax is included. Dennis plans to spend 25% of the $20 he has saved to buy several toy cars. Which is the best estimate of the number of toy cars Dennis can buy with the money he plans to spend?


A.
8

B.
5

C.
3

D.
1

Answer 1

first you want to take 25% of $20: .25*20=5
then you want to divide this by the max a toy car can cost
5/2.45=2.04, so he can buy 2 of the most expensive toy cars
now you want to divide 5 by the least expensive toy cars:
5/1.25=4
So he can buy 4 inexpensive toy cars or 2 expensive toy cars.
Take the average of 2 and 4 to get the best estimate
(2+4)/2=3
So the answer is 3