Question

A increment of 25% in the price of maize enable a buyer to buy 5 kg less for Rs. 2400. The increased price per kg of maize will be:
1. Rs. 600
2. Rs. 120
3. Rs. 90
4. Rs. 480

Answer 1

Correct Answer - Option 2 : Rs. 120

Given:

⇒ Increment in the price = 25%

Formula Used:

Total Cost/Per kg cost = Weight (Kg of Maize)

Calculation:

Let assume that original price for 1 kg Maize = Rs. x

⇒ Increased price for 1 kg Maize = 125x/100 = Rs. 5x/4

According to question:

Total Cost/Per kg cost = Weight (Kg of Maize)

⇒ 2400/x – 2400/(5x/4) = 5

⇒ 2400 × (1 – 4/5) / x = 5

⇒ 2400/5x = 5

⇒ x = 96

⇒ So, original price = Rs.96

⇒ And increased price = Rs. 96 × 5/4 = Rs. 120

∴  The increased price per kg = Rs. 120.

The correct option is 2 i.e. Rs. 120