By selling salt at ₹1 per kg, a man gains a 10% profit. By how much must he raise the price to gain a 21% profit?
A
20 paise
B
10 paise
C
30 paise
D
None of these
Correct Option:
B
Explanation
If ₹1 is the selling price at a 10% profit, the cost price is ₹10/11. At a 21% profit, the selling price is ₹1.10. Therefore, the required increase is 10 paise.
