Vijay sells bananas at the rate of Rs. 14 per dozen and earns a profit of 40 percent. The cost price of the bananas increases by 30 percent. If the selling price remains the same, then what is his new profit percent?

7.69 percent

SP = 14 , Profit = 14%

SO ,    CP   :   SP

            5     :   7

According to question ,

7X = 14

X = 2

5X = 10

Increased Priced = 130% of 10 = 13(New CP) 

SP = 14

Profit percent = \(\frac{14-13}{13}\) × 100 = \(\frac{1}{13}\) × 100 

= 7.69%