Quantitative Aptitude - Arithmetic Ability Questions

Atul can do a piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?

The value of tan 315° cot (­ -405° ) is equal to

A solid sphere of radius 3 cm is melted to form a hollow right circular cylindrical tube of length 4 cm and external radius 5 cm. The thickness of the tube is

If a cylinder of radius 4.3 cm and height 4.8 cm is melted and constructed into a cone of the same radius, what will be the height of this cone? (Use π = 22/7)

Select the odd word/letters/number/number pair from the given alternatives.

Marked price of a chair is Rs 800 and discount is 15%. What is additional discount (in percentage) should be offered to the customer to bring the price of chair to Rs 578?

The HCF of two numbers is 12 and their LCM is 72. If one of the two numbers is 24, then the other number is

The area of a circle is 616 sq.m. Find its diameter.