Bryan has 120 marbles.
Adam has 30 marbles.
- What is the sum of marbles?
- How many marbles must Bryan give to Adam so both have the same number of marbles?
- How many marbles must Adam get from Bryan so both have the same number of marbles?
(a)
Total sum of marbles
= 120 + 30
= 150
(b)
Number of marbles that Bryan has more than Adam
= 120 - 30
= 90
For both Bryan and Adam to have the same number of marbles, the extra marbles must be shared equally.
Number of marbles that Bryan must give to Adam
= 90 ÷ 2
= 45
(c)
Number of marbles that Adam must get from Bryan
= Number of marbles that Bryan must give to Adam
= 45
Answer(s): (a) 150; (b) 45; (c) 45