PSLE A shop had a number of massage chairs for sale. After selling 22 of them in the morning and
310 of the remainder in the afternoon, it was left with
13 of the massage chairs. How many massage chairs were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
22 |
3x1 |
7x1 |
2x7 |
1x7 |
11 u |
3 u |
7 u |
Fraction of the remainder left
= 1 -
310 =
710 7x110x1 Remainder =
1x73x7 Total
710 Remainder =
721 Total
Number of massage chairs sold in the morning
= 14 u - 3 u
= 11 u
11 u = 22
1 u = 22 ÷ 11 = 2
Total number of massage chairs sold
= 14 u
= 14 x 2
= 28
Answer(s): 28