Quantitative Aptitude - Arithmetic Ability Questions

A can do a work in 12 days and B in 24 days. If they work on it together for 4 days, then what fraction of work is left?

Amal is 5 times as good a workman as Bhairav and therefore is able to finish a job in 48 days less than Bhairav. Working together, they can do it in

Mr. Mahesh sold a bus for Rs. 22,100 with a loss of 15%. At what price should the bus be sold to get a profit of 15%?

Coefficient of x2 in 6x3 + 4x2 + 2x + 3 is

Simplify (b2x 3a2z4 ) × (b2x 4a4z3 )/(a3b2z4 )

What is the simplified value of (cosec A – sin A)(sec A – cos A)(tan A + cot A)?

tan(A/2) is equal to

[sinA/(1 + cosA)] + [(1 + cosA)/sinA] is equal to