PSLE A shop had a number of hard drives for sale. After selling 130 of them in the morning and
25 of the remainder in the afternoon, it was left with
16 of the hard drives. How many hard drives were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
130 |
2x1 |
3x1 |
5x3 |
1x3 |
13 u |
2 u |
3 u |
Fraction of the remainder left
= 1 -
25 =
35 3x15x1 Remainder =
1x36x3 Total
35 Remainder =
318 Total
Number of hard drives sold in the morning
= 15 u - 2 u
= 13 u
13 u = 130
1 u = 130 ÷ 13 = 10
Total number of hard drives sold
= 15 u
= 15 x 10
= 150
Answer(s): 150