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

1. How many pears did Mary buy?
2. How many pears did Mary give to each friend?

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

The total number of pears given to the 5 friends is the multiples of 5 since there were 5 friends.
Multiples of 5: 5, 10, 15, 20, 25, 30, 35

The total number of pears is the multiples of 5 with an added 5 pears since Mary ate 5 pears.
Multiples of 5 (+5): 10, 15, 20, 25, 30, 35, 40

Number of pears that Mary bought = 35

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

Answer(s): (a) 35; (b) 6