A lends 2500 to B and a certain sum to C at the same time at 7% annual simple interest. If after 4 years, A altogether receives 1120 as interest from B and C, the sum lent to C is-

$$ {x^{8}+4\over{x^{4}+2x^{2}+2}}$$ is equal to

Average present ages of A, B and C is 25 years. The ratio of the present ages of B and C is 4:5. After 6 years, the ratio will be B and C is 5:6, then what is the present age of A?

An amount of Rs.56,742 is divided between P and Q in the ratio of 19 : 23. What is the difference between thrice the share of P and twice the share of Q?

The average of six consecutive odd numbers is 26. Find the difference between the largest and the smallest of these numbers.

3¹¹ + 3¹² + 3¹³ + 3¹⁴ is divisible by which of the following?

If the length of a rectangle is increased by 10% and the area is unchanged, then how much percent does the breadth decrease?

 The area (in sq.units) of the triangle formed by the graphs of 8x+3y=24, 2x+8=y and x-axis is: