What will be the compound interest earned on an amount of Rs. 5000 in 2 years?

I. The simple interest on the same amount at the same rate of interest in 5 years is Rs.2000.

II. The compound interest and the simple interest earned in one year is the same.

III. The amount becomed more than double on compound interest in 10 years.

What is the simplified value of (cos A + sin A)(cot A + tan A)?

If x + [1/(x + 7)] = 0, then what is the value of x – [1/(x + 7)]?

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

If sec2θ + tan2θ = 5/3, then what is the value of tan2θ?

A square is inscribed in a quarter circle in such a way that two of its adjacent vertices on the radius are equidistant from the centre and other two vertices lie on the circumference. If the side of square is √(5/2) cm, then what is the radius (in cm) of the circle?

How many diagonals are there in octagon?

ABCD is a parallelogram in which AB = 7 cm, BC = 9 cm and AC = 8 cm. What is the length (in cm) of other diagonal?

In the fig. ∆ABC is inscribed in a circle with centre O. If ∠ABC = 30° then ∠ACB is equal to