PSLE A shop had a number of computers for sale. After selling 63 of them in the morning and
13 of the remainder in the afternoon, it was left with
15 of the computers. How many computers were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
63 |
1x1 |
2x1 |
4x2 |
1x2 |
7 u |
1 u |
2 u |
Fraction of the remainder left
= 1 -
13 =
23 2x13x1 Remainder =
1x25x2 Total
23 Remainder =
210 Total
Number of computers sold in the morning
= 8 u - 1 u
= 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Total number of computers sold
= 8 u
= 8 x 9
= 72
Answer(s): 72