Question

The price of an article diminished twice successively, first by $30\%$ and then by $40\%$. If the original price was Rs. 1000, what is it now?

• A. Rs.400
• B. Rs. 300
• C. Rs.240
• D. Rs. 420

Answer 1

The correct option is D Rs. 420

$1000\times \frac{(100-30)}{100}\times \frac{(100-40)}{100}$
$=1000\times \frac{70}{100}\times \frac{60}{100}=Rs.420$