PSLE
Barbara bought some bags of apples. Each bag contained 7 apples. The total number of apples Barbara bought was less than 40. Barbara ate 5 apples and gave the rest equally to her 6 friends.

1. How many apples did Barbara buy?
2. How many apples did Barbara give to each friend?

(a)
The total number of apples is the multiples of 7 since each bag contained 7 apples.
Multiples of 7: 7, 14, 21, 28, 35

The total number of apples given to the 6 friends is the multiples of 6 since there were 6 friends.
Multiples of 6: 6, 12, 18, 24, 30, 36

The total number of apples is the multiples of 6 with an added 5 apples since Barbara ate 5 apples.
Multiples of 6 (+5): 11, 17, 23, 29, 35, 41

Number of apples that Barbara bought = 35

(b)
Number of apples that Barbara gave to each friend
= (35 - 5) ÷ 6
= 30 ÷ 6
= 5

Answer(s): (a) 35; (b) 5