Quantitative Aptitude - Arithmetic Ability Questions

Dev lent Rs. 8000 to Jairam for 17 years and Rs. 4700 to Karnik for 16 years on simple interest at the same rate of interest and received Rs. 21120 in all from both of them as interest. The rate of interest per annum is:

If x3+ 2x2– 5x + k is divisible by x + 1, then what is the value of k?

In the given figure, PQRS is a quadrilateral. If QR = 18 cmand PS = 9 cm,then what is the area (in sq. cm) of quadrilateral PQRS?

In the given figure, PQR is a triangle and quadrilateral ABCD is inscribed in it. QD = 2 cm, QC = 5 cm, CR = 3 cm, BR = 4 cm, PB = 6 cm, PA = 5 cm and AD = 3 cm. What is the area in sq.cm of the quadrilateral ABCD?

The average of a,b,c is 20 and that of b,c,d is 25; if d=30, then the value of a is

What is the value of 10.2+10.02+10.002+... upto 9 terms

The area of a rectangle in 60 sq.cm and its perimeter is 34 cm, then the length of the diagonal is

If Sin x = 4/5, then Cosec x + Cot x =