Tommy had some pens. He gave
34 of his pens to Lee and bought 4 new pens. After that, he gave
27 of his remaining pens to his brother and bought another 7 new pens. In the end, Tommy had 37 pens.
- How many pens did Tommy give to his brother?
- How many pens did Tommy have at first?
(a)
Fraction of his remaining pens after he gave to his brother
= 1 -
27=
57 57 of his remaining pens = 37 - 7 = 30
17 of his remaining pens = 30 ÷ 5 = 6
27 of his remaining pens = 2 x 6 = 12
Number of pens that Tommy gave to his brother = 12
(b)
77 of his remaining pens = 7 x 6 = 42
Fraction of his total pens after he gave to Lee
= 1 -
34=
14 14 of his total pens = 42 - 4 = 38
44 of his total pens = 4 x 38 = 152
Number of pens that Tommy had at first = 152
Answer(s): (a) 12; (b) 152
