The difference between a discount of 35% and two successive discounts of 20% and 20% on a certain bill, was ₹22. Find the amount of the bill.
Explanation:
Two successive discount of 20% is equivalent to = - 20 - 20 + (-20 × -20)/100 = -36% i.e., one single discount of 36%
∴ The difference in two discounts is 1% (= 36% - 35%) of total bill.
⇒ 1% of total bill = 22
⇒ Total bill = Rs. 2200
Hence, option (b).
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