Nanyang Pri Sch P6 CA1 2008 Math Q39

Jaffa gave 60% of his marbles to his brother and 25% of the remainder to two friends. Each of his friends received 30 marbles. How many marbles did his brother receive?

Solution



(2 friends)
40% x 25% ----- 30 x 2 = 60
10% ----- 60
60% ----- 6 x 60 = 360

Answer: He received 360 marbles.