Quantitative Aptitude - Arithmetic Ability Questions

The price of an article is cut by 31%, to restore to its original value, the new price must be increased by

Find the LCM of 12, 16, 20 and 24.

The height and the slant height of a right circular cone are 24 cm and 25 cm, respectively. Considering π as 22/7 , find the curved surface area of the said cone.

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

Determine the value of 1r+1s when r3+s3=0 and r+s=6 ?

What is the sum of all natural numbers between 100 and 400 which are divisible by 13?

ABCD is a cyclic quadrilateral ∠DBA=50° and ∠ADE=33°, then the measurement of ∠BCD is

Mayank, Deepak and Pawan, each of them working alone can complete a work in 5, 10 and 15 days respectively. If all three of them work together to complete a work and earn Rs. 12000 what will be Deepak's share of the earnings?