Vincent sold
25 of the biscuits he made in the morning and half of the remainder in the evening. He had 18 biscuits left unsold.
- How many biscuits did he sell altogether?
- If he sold 2 biscuits for $4.70, 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 = 18
1 u = 18 ÷ 3 = 6
Number of biscuits sold
= 10 u - 3 u
= 7 u
= 7 x 6
= 42
(b)
Number of sets of 2 biscuits
= 42 ÷ 2
= 21
Amount that Vincent received from the biscuits he sold
= 21 x 4.70
= $98.70
Answer(s): (a) 42; (b) $98.70
