PSLE A shop had a number of hi-fi systems for sale. After selling 48 of them in the morning and
14 of the remainder in the afternoon, it was left with
14 of the hi-fi systems. How many hi-fi systems were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
48 |
1x1 |
3x1 |
3x3 |
1x3 |
8 u |
1 u |
3 u |
Fraction of the remainder left
= 1 -
14 =
34 3x14x1 Remainder =
1x34x3 Total
34 Remainder =
312 Total
Number of hi-fi systems sold in the morning
= 9 u - 1 u
= 8 u
8 u = 48
1 u = 48 ÷ 8 = 6
Number of hi-fi systems sold in the afternoon
= 1 u
= 1 x 6
= 6
Answer(s): 6