Gwen bought some fruits. She spent $12 more than
34 of her money on some kiwis. She then spent $9 more than 10% of the remaining money on some mangosteens. Given that she had $18 left,
- How much did Gwen have at first?
- How many kilograms of mangosteens did she buy if they cost $3 per kg?
(a)
100% - 10% = 90%
90% of remaining money
= 18 + 9
= 27
1% of remaining money
= 27 ÷ 90
= 0.3
100% of remaining money
= 100 x 0.3
= 30
14 of total money
= 30 + 12
= $42
44 of total money
= 4 x 42
= $168
Amount that Gwen had at first = $168
(b)
10% of the remaining money
= 30 x 10%
= 30 x
10100 = $3
Amount spent on mangosteens
= 9 + 3
= $12
Weight of mangosteens bought
= 12 ÷ 3
= 4 kg
Answer(s): (a) $168; (b) 9 kg