What will be the compound interest of 3 years at the rate of 5 % of 1000 rupees?

If the area of a triangle is 616 square cm, then its perimeter will be-

The graph of the equation 4x - 5y = 20 intersects the X-axis at the point.

What is the measure of the circum radius of a triangle whose sides are 9cm, 40cm and 41cm?

Gopal and Ravi contracted a work for Rs 480. If Gopal can do that work in 15 days and Ravi can complete that same work in 10 days. He completed this work with Mahesh in 5 days, then tell me how much money Mahesh got.

Vinit and Gopal can do a work together in 4 days. Shyam and Mohan can do the same work in 12 days. So, in how many days can all four complete that work together?

The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

If A:B = $$ {3\over 4}$$ : $$ {5\over 2}$$  and B:C= $$ {1\over2}:{3\over 5}$$ then what is the ratio of A:B:C=?