Quantitative Aptitude - Arithmetic Ability Questions

Surya works 3 times as fast as Ramya and is able to complete a work in 40 days less than the number of days taken by Ramya. Find the time in which they can complete the work together.

A vendor buys bananas at 4 for Rs 3 and sells at 3 for Rs 4. What will be the result?

What is the simplified value of 18 - 12 ?

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

At 24% discount the selling price of a washing machine is Rs 38000, what is the selling price if the discount is 40%?

A Rs 100 shirt is offered at 10% discount and a Rs 300 pair of trousers at 20% discount. If Pritam bought 1 shirt and 3 pairs of trousers, what is the effective discount (in %) he got?

If x2-2x+1=0,then the value of x4+1x4 is

In ΔABC, ∠B = 70° and ∠C = 60°. The internal bisectors of the two smallest angles of ΔABC meet at O. The angle so formed at O is