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A reduction of 15% in the price of apples would enable a purchaser to get 2 kg more apples for $ 240. The new price (per kg) of apples is
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- $ 15
- $ 18
- $ 20
- $ 36
Correct Option: B
Let the original rate = y per kg.
New rate = ( 100 - 15 )% of y
| New rate = 85% of y = | = | 100 | 20 |
| Original quantity for $ 240 = | y |
| New quantity = 240 × | = | 17y | 17y |
From the question ,
| ∴ | - | = 2 | 17y | y |
| ⇒ | = 2 | 17y |
| ⇒ | = 2 ⇒ y = | 17y | 2 × 17 |
| ∴ Original rate per kg = $ | 34 |
| ∴ Reduced rate = $ | 20 |
| Reduced rate = $ |  | 17 | × | 720 |  | = $ 18 | |
| 20 | 34 |
