Consider two Statements and a Question :

The cost of a machine is ?18,000 and it depreciates at 16(2/3)% annually. Its value after 2 years will be

A can do a piece of work in 20 days and B can do it in 30 days. How long will they take to do the work together?

Find the LCM of pair of the following polynomials x⁴ – 27a³ x, (x-3a)², whose GCD is (x-3a)

Find the missing number

2, 4, 12, 48, 240, .....

If Karkuzhali earns ₹ 1,800 in 15 days, then she earns ₹3,000 in ___________days.

If 18 men working 18 hours a day can make 18 quilts in 18 days, then in how many days 27 men working 12 hours per day will make 27 quilts?

Select the number from the given options which will come in place of the question mark (?) in the following series. 

6, 12, 14, 28, 30, 60, ?

Find the difference between Simple Interest and Compound Interest for a sum of ₹ 8,000 lent at 10% per annum in 2 years.