Gwen bought some fruits. She spent $15 more than
34 of her money on some mangoes. She then spent $9 more than 30% of the remaining money on some grapefruits. Given that she had $19 left,
- How much did Gwen have at first?
- How many kilograms of grapefruits did she buy if they cost $3 per kg?
(a)
100% - 30% = 70%
70% of remaining money
= 19 + 9
= 28
1% of remaining money
= 28 ÷ 70
= 0.4
100% of remaining money
= 100 x 0.4
= 40
14 of total money
= 40 + 15
= $55
44 of total money
= 4 x 55
= $220
Amount that Gwen had at first = $220
(b)
30% of the remaining money
= 40 x 30%
= 40 x
30100 = $12
Amount spent on grapefruits
= 9 + 12
= $21
Weight of grapefruits bought
= 21 ÷ 3
= 7 kg
Answer(s): (a) $220; (b) 9 kg