PSLE A shop had a number of massage chairs for sale. After selling 21 of them in the morning and
25 of the remainder in the afternoon, it was left with
14 of the massage chairs. How many massage chairs were left?
Morning |
Remainder |
|
Afternoon |
Left |
21 |
2x1 |
3x1 |
3x3 |
1x3 |
7 u |
2 u |
3 u |
Fraction of the remainder left
= 1 -
25 =
35 3x15x1 Remainder =
1x34x3 Total
35 Remainder =
312 Total
Number of massage chairs sold in the morning
= 9 u - 2 u
= 7 u
7 u = 21
1 u = 21 ÷ 7 = 3
Number of massage chairs left
= 3 u
= 3 x 3
= 9
Answer(s): 9