Quantitative Aptitude - Arithmetic Ability Questions

What is the value of the expression a3 - 5 + 2816a, when a = 2?

If (4x - 3) - (2x + 1) = 4, then the value of x is

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in

The average weight of 10 parcels is 1.7 kg. Addition of another new parcel reduces the average weight by 60 gram. What is the weight , in kg, of the new parcel?

A book seller allowed 10% discount on printed price. He gets 30% commission from publisher. His profit in percent will be

A shopkeeper by selling 22 Skechers shoes, earns a profit equal to the selling price of 6 Skechers shoes. His profit percentage is:

Raghuram sells a machine for Rs 43 lakhs at a loss. Had he sold it for Rs 53 lakh, his gain would have been 7 times the former loss. Find the cost price of the machine.

If sec2θ + tan2θ = 5/3, then what is the value of tan2θ?