Question

Lian has $1.00. She has only nickels and dimes. Lian has twice as many dimes as nickels. How many dimes does she have?

Answer 1

Answer: 8

Explanation:

Given

Lian has
`\$1.00` and she has twice as many dimes as nickels

Suppose she has
`x` nickels

So, the number of dimes is
`2x`

Nickel is equivalent to 5 cents and dime is equivalent to 10 cent

`\therefore \ x(0.05)+2x(0.1)=1\\\Rightarrow 0.05x+0.2x=1\\\Rightarrow 0.25x=1\\\Rightarrow x=4`

Therefore she has 8 dimes with her.