Albert had 160 marbles. He gave
58 of it to Riordan and
45 of the remainder to Xandra. How many marbles had he left?
Fraction of the marbles left after giving to Riordan
= 1 -
58 =
38 Fraction of the remaining marbles left after giving to Xandra
= 1 -
45 =
15
Fraction of the marbles left after giving to Riordan and Xandra
= 38 x 15
= 340
Total number of marbles = 40 u
40 u = 160
1 u = 160 ÷ 40 = 4
Number of marbles left
= 3 u
= 3 x 4
= 12
Answer(s): 12