PSLE A shop had a number of printers for sale. After selling 108 of them in the morning and
310 of the remainder in the afternoon, it was left with
14 of the printers. How many printers were left?
Morning |
Remainder |
|
Afternoon |
Left |
108 |
3x1 |
7x1 |
3x7 |
1x7 |
18 u |
3 u |
7 u |
Fraction of the remainder left
= 1 -
310 =
710 7x110x1 Remainder =
1x74x7 Total
710 Remainder =
728 Total
Number of printers sold in the morning
= 21 u - 3 u
= 18 u
18 u = 108
1 u = 108 ÷ 18 = 6
Number of printers left
= 7 u
= 7 x 6
= 42
Answer(s): 42