Janki purchased 10 dozens of corn at the rate of Rs. 180 dozen. She sold each corn at the rate of Rs. 22. What was her percent profit ?

46.6 percent

We know one dozen = 12 unit

10 dozen = 12 × 10 = 120 units

she purchased 10 dozens of corn at the rate of Rs. 180 dozen 

so, the total cost = 10 × 180 = 1800

She sold each corn at the rate of Rs. 22 so the total selling = 22 × 120 =  2640

Profit percentage = \(\frac{(2640 - 1800) × 100}{1800}\) = 46.6%