PSLE A shop had a number of stereo systems for sale. After selling 45 of them in the morning and
14 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 |
45 |
1x1 |
3x1 |
2x3 |
1x3 |
5 u |
1 u |
3 u |
Fraction of the remainder left
= 1 -
14 =
34 3x14x1 Remainder =
1x33x3 Total
34 Remainder =
39 Total
Number of stereo systems sold in the morning
= 6 u - 1 u
= 5 u
5 u = 45
1 u = 45 ÷ 5 = 9
Number of stereo systems left
= 3 u
= 3 x 9
= 27
Answer(s): 27