Quantitative Aptitude - Arithmetic Ability Questions

Anil can do a piece of work in 14 days which Rohit can do in 21 days. They worked together for few days after which Anil left. If Rohit worked alone for 3 days, find the total number of days it took to complete the whole work.

Krish is 5 years younger than Parthiv. Eight years ago three times the age of Krish was 10 more than twice the age of Parthiv. Find Krish's present age?

10 identical solid spherical balls of radius 3 cm are melted to form a single sphere. In this process 20% of solid is wasted. What is the radius (in cm) of the bigger sphere?

A shopkeeper marks up his wares by 60% and offers 25% discount. What will be the selling price (in Rs) if the cost price is Rs 1600?

If cotθ = 4, then the value of 5sinθ+3cosθ5sinθ-3cosθ is

If -3/2 + (2/3)(3x + 9) = x/2, then what is the value of x?

If 2x+ 4(x - 3) < -2 - x < 2x - 1, then find the value of x.

If 25% of an electricity bill is deducted, Rs 1788 is still to be paid. How much was the bill?