PSLE A shop had a number of massage chairs for sale. After selling 40 of them in the morning and
35 of the remainder in the afternoon, it was left with
15 of the massage chairs. How many massage chairs were left?
Morning |
Remainder |
|
Afternoon |
Left |
40 |
3x1 |
2x1 |
4x2 |
1x2 |
5 u |
3 u |
2 u |
Fraction of the remainder left
= 1 -
35 =
25 2x15x1 Remainder =
1x25x2 Total
25 Remainder =
210 Total
Number of massage chairs sold in the morning
= 8 u - 3 u
= 5 u
5 u = 40
1 u = 40 ÷ 5 = 8
Number of massage chairs left
= 2 u
= 2 x 8
= 16
Answer(s): 16