Question

How to use a ration box to do. Tammy saved nickels and pennies in a jar the ration of nickels to pennies was 2 to 5 if there where 70 nickels in the jar how many coins are there in all

Answer 1

Given :

Tammy saved nickels and pennies in a jar the ration of nickels to pennies was 2 : 5 .

To Find :

If there where 70 nickels in the jar how many coins are there in all.

Solution :

Let, number of pennies are x.

It is given that ratio of nickels to pennies is  2 : 5.

$\dfrac{2}{5} = \dfrac{70}{x}\\\\x = \dfrac{70\times 5 }{2}\\\\x = 175$

So, numbers of pennies are 175.

Therefore, total number of coins in the jar is, 175 + 70 = 245 coins.