Quantitative Aptitude - Arithmetic Ability Questions

If Sinx = 4/5, then Sec2x - 1 = ?

A certain sum when invested at 5% interest compounded annually for 3 years yields an interest of Rs.2522. Find the Principal?

To cover a certain distance with a speed of 60 km/hr, a train takes 15 hours. If it covers the same distance in 12 hours, what will be its speed?

The marked price of an article is Rs 1200 and retailer gets a discount of 25%. If he sells that article for Rs 1200, then what is the profit percentage of retailer?

Two students appeared for an examination. One of them secured 26 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are

What is the value of [tan (90 – A) + cot (90 – A)]2/[2 sec2(90 – 2A)]?

Simplify 576b3x2a4z3/36a3b2z

Product of three consecutive odd numbers is 1287. What is the largest of the three numbers?