Glen had some coins. 35% of his coins were made up of 20-cent coins which was equal to the number of $1 coins. The rest of the coins were made up of 5-cent coins. Given that Glen had $22 more 20-cent coins than 5-cent coins, how many coins did Glen have altogether?
|
5-cent |
20-cent |
$1 |
Total |
Number |
6 u |
7 u |
7 u |
20 u |
Value |
5 |
20 |
100 |
|
Total value |
30 u |
140 u |
700 u |
|
35% =
35100 =
720The number of 20-cent coins and $1 coins is the same.
Number of 5-cent coins
= 20 u - 7 u - 7 u
= 6 u
$1 = 100¢
$22 x 100 = 22 x 100 = 2200¢
Number of more 20-cent coins than 5-cent coins
= 140 u - 30 u
= 110 u
110 u = 2200
1 u = 2200 ÷ 110 = 20
Total number of coins that Glen had
= 6 u + 7 u + 7 u
= 20 u
= 20 x 20
= 400
Answer(s): 400