1.

If the difference between discount of 50% and two successive discounts of 30% on a certain bill is Rs. 6, then what is the amount (in Rs.) of the bill?1). 3002). 7503). 6004). 800

Answer»

Let, amount of the bill = Rs. X

In the 1st CASE,

After a discount of 50%, price = x - x × 50/100 = Rs. 0.5x

In the 2nd case,

After discount of 30%, price = x - x × 30/100 = Rs. 0.7x

After another discount of 30%, price = 0.7x - 0.7x × 30/100 = Rs. 0.49x

According to problem,

⇒ 0.5x - 0.49x = 6

⇒ 0.01x = 6

⇒ x = 600

∴ amount of the bill = Rs. 600



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