PSLE A shop had a number of printers for sale. After selling 70 of them in the morning and
15 of the remainder in the afternoon, it was left with
13 of the printers. How many printers were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
70 |
1x1 |
4x1 |
2x4 |
1x4 |
7 u |
1 u |
4 u |
Fraction of the remainder left
= 1 -
15 =
45 4x15x1 Remainder =
1x43x4 Total
45 Remainder =
412 Total
Number of printers sold in the morning
= 8 u - 1 u
= 7 u
7 u = 70
1 u = 70 ÷ 7 = 10
Total number of printers sold
= 8 u
= 8 x 10
= 80
Answer(s): 80