PSLE A shop had a number of projectors for sale. After selling 90 of them in the morning and
16 of the remainder in the afternoon, it was left with
13 of the projectors. How many projectors were left?
Morning |
Remainder |
|
Afternoon |
Left |
90 |
1x1 |
5x1 |
2x5 |
1x5 |
9 u |
1 u |
5 u |
Fraction of the remainder left
= 1 -
16 =
56 5x16x1 Remainder =
1x53x5 Total
56 Remainder =
515 Total
Number of projectors sold in the morning
= 10 u - 1 u
= 9 u
9 u = 90
1 u = 90 ÷ 9 = 10
Number of projectors left
= 5 u
= 5 x 10
= 50
Answer(s): 50