Quantitative Aptitude - Arithmetic Ability Questions

Which smallest number must be subtracted from 400, so that the resulting number is completely divisible by 7?

A number is greater than twice its reciprocal by 31/4. Find the number.

Select the odd word/letters/number/number pair from the given alternatives.

A and B together can do a piece of work in 10 days. If A can do the work in 15 days, find in how many days that B alone can do the same work. Given below are the steps involved in solving the above problem. Arrange them in sequential order.

A) One day's work of B is 1/10 - 1/15

B) One day's work of A and B is 1/10 and One day's work of A is 1/15

C) B alone can do the work in 30 days

D) One day's work of B is 1/30

If a + b = 10 and ab = 24, then the value of a3 + b3 is

If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is

If 51.97 ­ (81.18 -­ x ) ­- 59.39 = 5.268, then value of x will be

At what point does the line 3x + 2y = -12 intercept the Y-axis?