If price of an apple is reduced by 30 Percent it enables the customer to buy 5 more apples for Rs.140. Find the reduced rate of apple.

Rs.8.4

30% = \(\frac{3}{10}\)

Price            10   :  7

Quantity        7   :  10

{ Price ∝ \(\frac{1}{Quantity }\)}

(10- 7)R = 3R = 5

10R = \(\frac{5}{3}\) × 10 = 16.66

Reduced price of apple = \(\frac{140}{16.66 }\) = Rs8.4