Quantitative Aptitude - Arithmetic Ability Questions

If by selling an article for Rs. 390 a shopkeeper gains 20% , then the cost is

A wholesaler sells a watch to a retailer at a gain of 20% and the retailer sells it to a customer at a loss of 10%. If the customer pays Rs 874.8, what had it cost the wholesaler?

If (6x ­- 1) -­ (8x -­ 5) = 7, then the value of x is _______ .

What is the value of 53% of 7400?

If 3 tan θ = cot θ where 0 < θ < π/2, then what is the value of θ ?

∆PQR is right angled at Q. If m∠R = 45°, then find the value of (cosecP - √3/2)

tan(A/2) is equal to

Calculate the total numbers of prime factors in the expression (5)11 x (5)7 x (7)5 x (3)2 x (17)2.