PSLE A shop had a number of mobile phones for sale. After selling 42 of them in the morning and
311 of the remainder in the afternoon, it was left with
14 of the mobile phones. How many mobile phones were left?
Morning |
Remainder |
|
Afternoon |
Left |
42 |
3x1 |
8x1 |
3x8 |
1x8 |
21 u |
3 u |
8 u |
Fraction of the remainder left
= 1 -
311 =
811 8x111x1 Remainder =
1x84x8 Total
811 Remainder =
832 Total
Number of mobile phones sold in the morning
= 24 u - 3 u
= 21 u
21 u = 42
1 u = 42 ÷ 21 = 2
Number of mobile phones left
= 8 u
= 8 x 2
= 16
Answer(s): 16