Quantitative Aptitude - Arithmetic Ability Questions

The sum of the ages of husband and wife at present is 56. Ten years ago the product of their ages was 320. What is the age of the husband and the wife?

If the angle subtended by the radius of the circle and vertex B of the triangle ABC is 400. Then calculate the value of ∠BAC

What is the measure of the central angle of the sector whose area is 462 sq cm and radius of the circle is 21 cm?

If x2+ y2+ z2= xy + yz + zx, then what is the value of (7x + 3y – 5z)/5x?

A bank offers 10% compound interest per half year. A customer deposits Rs. 3600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is.

If 4x - 7y = 3 and 2x - y = 9, then x - y is.

If A : B = 1 : 4 and B : C = 2 : 3, then what is A : B : C?

What is the simplified value of 1-sin A1+sin A ?