PSLE A shop had a number of television sets for sale. After selling 20 of them in the morning and
38 of the remainder in the afternoon, it was left with
12 of the television sets. How many television sets were sold altogether?
Morning |
Remainder |
|
Afternoon |
Left |
20 |
3x1 |
5x1 |
1x5 |
1x5 |
2 u |
3 u |
5 u |
Fraction of the remainder left
= 1 -
38 =
58 5x18x1 Remainder =
1x52x5 Total
58 Remainder =
510 Total
Number of television sets sold in the morning
= 5 u - 3 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Total number of television sets sold
= 5 u
= 5 x 10
= 50
Answer(s): 50