Question

- A jar contains 55 quarters and dimes. The total value of the coins is $8.50. Find the

number of quarters and dimes in the jar.

Answer 1

20 quarters and 35 dimes.

Explanation:

Let number of quarters = q

Therefore number of dimes = 55 - q

By condition, q * 25 + (55 - q) * 10 = 850 [all converted to cents]

25q + 550 - 10q = 850

25q - 10q = 850 - 550

15q = 300

q = 300/15 = 20

Therefore, number of quarters = 20

and number of dimes = 55 - 20 = 35