Quantitative Aptitude - Arithmetic Ability Questions

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is

Deepinder lent Rs 8200 to Jairaj for 16 years and Rs 4900 to Karna for 15 years on simple interest at the same rate of interest and received Rs 19446.5 in all from both of them as interest. The rate of interest per annum is:

If x1x2x3 = 4(4 + x1 + x2 + x3 ), then what is the value of [1/(2 + x1 )] + [1/(2 + x2 )] + [1/(2 + x3 )]?

Factorise x2 + 3x -­ 18

What is the value of Sin 30° + Cos 30°?

Find the 4th proportional to 9, 17 and 27.

If the angles of a triangle are in the ratio of 1 : 4 : 7, then find the ratio of the greatest angle to the smallest angle.

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