Quantitative Aptitude - Arithmetic Ability Questions

The least number, which when divided by 5, 6, 7 and 8 leaves a remainder 3 in each case, but when divided by 9 leaves no remainder, is:

If tanθ + cotθ = 5, then the value of tan2θ + cot2θ is

If the age of Rahul is 5 years more than his friend Ajay's age and the age of Rahul's wife is 6 years less than Rahul, and Ajay's wife is 1 year older than Rahul's wife, then which of the following statements is true?

The sum of three consecutive natural numbers each divisible by 5, is 225. The largest among them is

The difference between the place values of 9 and 5 in the number 428693745 is

If a is positive and a2+1a2 = 7, then a3 + 1a3 = ?

Marked price of an item is Rs 900. On purchase of 2 items discount is 6%, on purchase of 3 items discount is 12%. Rajani buys 5 items, what is the effective discount?

Which single discount will be equal to two successive discounts of 12% and 5%?