Question

Frank has a jar filled with 200 old dimes. Suppose he selects a dime from the jar without looking. There is a 20% chance that he will draw a dime from the 1960s. How many 1960s dimes are in Frank's jar? Explain your thinking. *

Answer 1

Answer: 40

Explanation:

Given

Jar contains 200 old dimes

Chances to pick the 1960s is 20% i.e. 1960s is 20% of 200 old dimes

So, we can write

`\Rightarrow \text{No of 1960s is }=20\%\ \text{of}\ 200=0.2* 200\\\Rightarrow \text{No of 1960s is }=40`