Question

The ratio of pennies to dimes I have is 3:5. I have a 2:3 ratio of dimes to quarters. If I have 75 quarters, how many pennies do I have?

Answer 1

If you have 75 quarters, at ratio of 2:3, you must have 50 dimes.

Thus, with 50 dimes and ratio of 3:5, you must have 30 pennies.