exam Maths Puzzle Numerical Ability

Allen bought 21 stamps in 37-cent and 20-cent denominations. If the total cost of the stamps was $7.26, how many 37-cent stamps did Allen buy?

Read Solution (Total 0)

exam Other Question

Write a system of two equations in two unknown for each problem. Solve each system by substitution. Would someone be able to help me with this problem?

x+5y=10
-2x-10y=-20
Solve by addition.