Question

The price of shirts at Sahara Ganj is defined as Rs. (100 + $10x^2$), where x is the number of shirts. Mallika purchased 5 shirts from the above shop. The average price of a shirt is :

• A. Rs. 70
• B. Rs. 50
• C. Rs. 75
• D. none of these

Answer 1

The correct option is A Rs. 70

Total price of 5 shirts = Rs [100 + 10 $\times (5{)}^2$] = Rs. 350
Hence, the average price $=\frac{350}{5}=Rs.70$