PSLE A shop had a number of stereo systems for sale. After selling 24 of them in the morning and
27 of the remainder in the afternoon, it was left with
13 of the stereo systems. How many stereo systems were left?
Morning |
Remainder |
|
Afternoon |
Left |
24 |
2x1 |
5x1 |
2x5 |
1x5 |
8 u |
2 u |
5 u |
Fraction of the remainder left
= 1 -
27 =
57 5x17x1 Remainder =
1x53x5 Total
57 Remainder =
515 Total
Number of stereo systems sold in the morning
= 10 u - 2 u
= 8 u
8 u = 24
1 u = 24 ÷ 8 = 3
Number of stereo systems left
= 5 u
= 5 x 3
= 15
Answer(s): 15