Tom sold
25 of the biscuits he made in the afternoon and half of the remainder in the evening. He had 27 biscuits left unsold.
- How many biscuits did he sell altogether?
- If he sold 3 biscuits for $3.70, how much did he receive from the biscuits he sold?
(a)
Fraction of the biscuits left after selling in the morning
= 1 -
25 =
35 Fraction of the remaining biscuits left after selling in the afternoon
= 1 -
12 =
12 Fraction of the biscuits left after selling in the afternoon
=
12 x
35 =
310 Total number of biscuits at first = 10 u
Number of biscuits left = 3 u
3 u = 27
1 u = 27 ÷ 3 = 9
Number of biscuits sold
= 10 u - 3 u
= 7 u
= 7 x 9
= 63
(b)
Number of sets of 3 biscuits
= 63 ÷ 3
= 21
Amount that Tom received from the biscuits he sold
= 21 x 3.70
= $77.70
Answer(s): (a) 63; (b) $77.70
