Question

Eric has 240 coins in his collection. 11/12 of the coins are pennies. 4/20 of the coins are nickels. The rest of the coin are quarters. How many of the coin are quarter?

Answer 1

`Quarters=60`

Explanation:

Total coin
`=240`

Pennies
`Pennies=(11)/(20)\ of\ total\ coins\\\\Nickels=(4)/(20)\ of\ total\ coins\\\\Nickels+Pennies=((11)/(20)+(4)/(20))\ of\ total\ coins=(3)/(4)\ of\ total\ coins\\\\Quarters=[1-(Nickels+Pennies)]\ of\ total\ coins=[1-(3)/(4)]\ of\ total\ coins=(1)/(4)\ of\ total\ coins\\\\Quarters=(1)/(4)* 240=60`

Note: Here Pennies are taken
`(11)/(20)` instead of
`(11)/(12)` as in that case the information given will be irrelevant.

`(11)/(12)` of 240=220

`(4)/(20)` of 240=48

220+48>240