Quantitative Aptitude - Arithmetic Ability Questions

A can do a work in 24 days and B in 40 days. If they work on it together for 10 days, then what fraction of work is left?

On selling 56 chairs, Mohan earns profit equal to the selling price of 6 chairs. What is the profit percentage?

The difference between the ages of two sisters is 4 years when father's age is 54. Father is elder by 2 years to mother . Younger sister's age is half of mother's age. Find the age of elder sister.

If 3+12=x+3y, then the x+y is 

The value of x for which the expressions 15 ­ 7x and 15x + 7 become equal is _____.

In the given figure, ABCD is a square of side 14 cm. E and F are mid points of sides AB and DC respectively. EPF is a semicircle whose diameter is EF. LMNO is a square . What is the area (in sq.cm) of the shaded region?

What is the value of sec2θ + 1sec2θ - 1 x 12cotθ - tanθ ?

If 493/29 = 17, then 4.93/0.0017 = ?