Marion bought some fruits. She spent $17 more than
45 of her money on some guavas. She then spent $9 more than 10% of the remaining money on some grapefruits. Given that she had $18 left,
- How much did Marion have at first?
- How many kilograms of grapefruits did she buy if they cost $4 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
15 of total money
= 30 + 17
= $47
55 of total money
= 5 x 47
= $235
Amount that Marion had at first = $235
(b)
10% of the remaining money
= 30 x 10%
= 30 x
10100 = $3
Amount spent on grapefruits
= 9 + 3
= $12
Weight of grapefruits bought
= 12 ÷ 4
= 3 kg
Answer(s): (a) $235; (b) 9 kg