## Realated Questions

While purchasing one item costing Rs. 400, I had to pay the sales tax at 7% and on another costing Rs. 6400, the sales tax was 9%. What percent of the sales tax I had to pay, taking the two items together on an average?

A student secures 90%, 60% and 54% marks in test papers with 100, 150 and 200 respectively as maximum marks. The percentage of his aggregate is:

What will be the simple intrest earned on an amount of Rs. 16,800 in 9 months at the rate of 6(1/4)% p.aa?