Min bought some fruits. She spent $11 more than
23 of her money on some starfruits. She then spent $7 more than 20% of the remaining money on some lemons. Given that she had $21 left,
- How much did Min have at first?
- How many kilograms of lemons did she buy if they cost $2 per kg?
(a)
100% - 20% = 80%
80% of remaining money
= 21 + 7
= 28
1% of remaining money
= 28 ÷ 80
= 0.35
100% of remaining money
= 100 x 0.35
= 35
13 of total money
= 35 + 11
= $46
33 of total money
= 3 x 46
= $138
Amount that Min had at first = $138
(b)
20% of the remaining money
= 35 x 20%
= 35 x
20100 = $7
Amount spent on lemons
= 7 + 7
= $14
Weight of lemons bought
= 14 ÷ 2
= 7 kg
Answer(s): (a) $138; (b) 7 kg