If the annual rate of simple interest decreases from 5.5% to 4.5%, then the total interest is decreased by ₹ 250. Find the capital.

In how many years a sum of money at 6 % simple interest per annum would be 4 double?

If the amount of ₹ 180 after one year will be ₹ 198, then the rate of simple interest is _____

Find the rate of simple interest per annum when the interest of some money in 5 years will be part of its principal.

The annual interest is part of its principal, then determine the interest of ₹ 690. The annual interest is for 8 months.

After retirement Gobinda Babu got ₹ 5,00,000. He deposited a part of it in post office at 7.2% simple interest p.a. and the other part in a bank at 6% simple interest p.a. Every year he got ₹ 33,600 in total as interest from bank and post office. Find the amounts he deposited in bank and post office separately.

What is the rate of simple interest per annum, when the interest of some money in 10 years will be part of its amount?

At the same rate of simple interest in percent per annum, if a principal becomes the amount of Rs. 7,100 in 7 years and Rs. 6,200 in 4 years, determine the principal and rate of simple interest in percent per annum.

State True/False: “The equal chords of a circle are at equal distances from the centre of the circle.”

Write a difference between the geometric angle and trigonometrical angle.

Find the value of angle in degree made by the tangent of a circle with the radius of that circle at the point of contact

Mode = 2 × Median – 3 × Mean.