Quantitative Aptitude - Arithmetic Ability Questions

There are red (A), yellow(B) and green (C) tokens in a bag. A : B :: 3 : 8, B : C :: 6 : 13. A : B : C is given by

A loan of Rs. 305 was taken at a certain rate per annum of compound interest, for 3 years. After 3 years the amount repaid was Rs. 670, calculate the rate of compound interest.

If the selling price is doubled, the profit triples. The profit percent is

What is the rate of interest (in %) if simple interest earned on a certain sum for the 3rd year is Rs 2,000 and compound interest earned in 2 years is Rs 4,160?

If x2+1x2 = 98, then x3+1x3 = ?

In the given series of numbers how many 7's are there which are immediately followed by 9 and immediately not preceeded by 5 ?

Common factor of 24b6c8d2, 18a6c2d4, 12a4b4 is

Karan remembers that his sister's birthday is not after 18th August. Karan's mother remembers that Karan's sister birthday is before 20th August but after 17th August. On which date of August is Karan's sister birthday?