Question

A grocery delivery service has 22 members. Each member pays monthly dues of $12.80

on the first day of the month,9 members paid
their dues. The remaining members paid
their dues on the third day of the month. How much
money was
collected in dues on the
(third days of the month?
A.115.20
B.232
C.166.40
D.131.84

Answer 1

The answer is C. 166.40

22 - 9 = 13 ( members who paid on the third)
13 x $12.80 = $166.40

Answer 2

C

Explanation:

If 9 members paid on the first day, this means they did not pay on the third day

The remaining people (everyone but the 9) paid on the third day

Therefore we must subtract to find out how many members paid on the third day

22 - 9 = 13

Each of the 13 members paid $12.80 which means we must multiply

13 × 12.80 = 166.40

In total, the grocery store collected $166.40 on the third day of the month