PSLE A shop had a number of hard drives for sale. After selling 36 of them in the morning and
712 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 |
36 |
7x1 |
5x1 |
5x5 |
1x5 |
18 u |
7 u |
5 u |
Fraction of the remainder left
= 1 -
712 =
512 5x112x1 Remainder =
1x56x5 Total
512 Remainder =
530 Total
Number of hard drives sold in the morning
= 25 u - 7 u
= 18 u
18 u = 36
1 u = 36 ÷ 18 = 2
Number of hard drives sold in the afternoon
= 7 u
= 7 x 2
= 14
Answer(s): 14