PSLE A shop had a number of projectors for sale. After selling 10 of them in the morning and
13 of the remainder in the afternoon, it was left with
14 of the projectors. How many projectors were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
10 |
1x1 |
2x1 |
3x2 |
1x2 |
5 u |
1 u |
2 u |
Fraction of the remainder left
= 1 -
13 =
23 2x13x1 Remainder =
1x24x2 Total
23 Remainder =
28 Total
Number of projectors sold in the morning
= 6 u - 1 u
= 5 u
5 u = 10
1 u = 10 ÷ 5 = 2
Total number of projectors sold
= 6 u
= 6 x 2
= 12
Answer(s): 12