PSLE A shop had a number of laptops for sale. After selling 15 of them in the morning and
311 of the remainder in the afternoon, it was left with
12 of the laptops. How many laptops were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
15 |
3x1 |
8x1 |
1x8 |
1x8 |
5 u |
3 u |
8 u |
Fraction of the remainder left
= 1 -
311 =
811 8x111x1 Remainder =
1x82x8 Total
811 Remainder =
816 Total
Number of laptops sold in the morning
= 8 u - 3 u
= 5 u
5 u = 15
1 u = 15 ÷ 5 = 3
Total number of laptops sold
= 8 u
= 8 x 3
= 24
Answer(s): 24