Quantitative Aptitude - Arithmetic Ability Questions

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

The ratio of the cost price and selling price of an article is 5 : 3. What is the loss percentage?

One of the two inlet pipes works twice as efficiently as the other. The two, working alongside a drain pipe that can empty a cistern all by itself in 8 hours, can fill the empty cistern in 8 hours. How many hours will the less efficient inlet pipe take to fill the empty cistern by itself?

Raghu's tanker can fill a cistern in 4 hours. After half the cistern is filled, three more similar tankers are opened. What is the total time taken to fillthe cistern completely?

If 2(5x - ­4) -­ 2 < 2x ­- 1 < 4x - ­2; then the value of x is

10 is added to a certain number, the sum is multiplied by 7, the product is divided by 5 and 5 is subtracted from the quotient. The remainder left is half of 88. What is the number?

If x + 1x = 3, then x18 + x12 + x6 + 1 value is

If (7x -­ 13) ­ (12x + 3) = 14, then the value of x is ______ .