PSLE For a recycling project, Perry collected 21 glass bottles, Zeph collected 9
b glass bottles and Seth collected 8 + 5
b glass bottles.
- How many more glass bottles did Zeph collect than Seth?
- How many glass bottles did the 3 boys collect altogether?
(a)
Number of glass bottles that Zeph collected more than Seth
= 9
b - (8 + 5
b)
= 9
b - 5
b - 8
= 4
b - 8
(b)
Total number of glass bottles that the 3 boys collected
= 21 + 9
b + 8 + 5
b = 21 + 8 + 9
b + 5
b = 29 + 14
b Answer(s): (a) 4
b - 8; (b) 29 + 14
b