Quantitative Aptitude - Arithmetic Ability Questions

25% discount is offered on an item. By applying a promo code the customer wins 4% cash back. What is the effective discount?

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A profit of Rs. 960 is divided between A and B in the ratio 1/3:1/2. The difference of their profit is :

If each median of an equilateral triangle has a length of 12cm. Then what will be the value of in-radius (in cm) of the equilateral triangle?

∆PQR is right angled at Q. If sinP = 12/13, then what is the value of tanR?

For what value of k, the expression x6– 18x3 + k will be a perfect square?

A does 60% of a work in 15 days. He then calls B, and they together finish the remaining work in 5 days. How long B alone would take to do the whole work?

The average revenues of 9 consecutive years of a company is Rs 76 lakhs. If the average of first 5 years is Rs 71 lakhs and that of last 5 years is Rs 83 lakhs, find the revenue for the 5th year.