PSLE A shop had a number of massage chairs for sale. After selling 190 of them in the morning and
111 of the remainder in the afternoon, it was left with
13 of the massage chairs. How many massage chairs were left?
Morning |
Remainder |
|
Afternoon |
Left |
190 |
1x1 |
10x1 |
2x10 |
1x10 |
19 u |
1 u |
10 u |
Fraction of the remainder left
= 1 -
111 =
1011 10x111x1 Remainder =
1x103x10 Total
1011 Remainder =
1030 Total
Number of massage chairs sold in the morning
= 20 u - 1 u
= 19 u
19 u = 190
1 u = 190 ÷ 19 = 10
Number of massage chairs left
= 10 u
= 10 x 10
= 100
Answer(s): 100