Correct Answer - Option 2 : 55%
GIVEN:
In a certain store, the profit is 210% of the cost.
CONCEPT:
Basic concept of Profit and Loss.
FORMULA USED:
Profit on the selling price = [(SP – CP)/SP] × 100
CALCULATION:
Let Cost price = Rs. 100
Then, Profit = Rs. 210,
So,
Selling price = Rs. 310
New CP = 140% of Rs. 100 = Rs. 140
New SP = Rs. 310
Hence,
Profit = Rs. (310 – 140) = Rs. 170
∴ Required percentage = (170/310) × 100 = 54.83 = 55% (Approx.)