Answer: Calvin has 13 quarters.
Explanation:
Let Calvin have x quarters.
therefore amount of Calvin = 0.25 x [ 1 quarter = $0.25 ]
Number of dimes for Sara = x
[ Given that number of dimes of Sara = number of quarters of Calvin
Amount of dimes for Sasha = 0.1x [ 1 dime = $0.1 ]
Amount of Sasha without dime = $1.95 [ given]
total amount of Sasha = 1.95 =+ 0.1x
Since amount of Calvin and Sasha is same therefore
0.25x = 1.95 +0.1x
0.25x -0.1x = 1.95
0.15x = 1.95
x =
x = 13