Gaurav borrowed Rs. 40000 from a bank at the simple interest of 10% p.a for 2 years. He lent some of this borrowed amount to his friend Shubham at the compound interest of 20% p.a for same period of time. If Gaurav earned Rs. 3000 from whole of this transaction, then find the amount lent to Shubham.
Interest to be paid to bank in 2 years: 10% × 2 × 40000 => 8000 Let the amount lent by Gaurav to Shubham be “A” Compound interest received by Gaurav in 2 years: A(1+20/100)2 – A => 11A/25 Net amount earned by Gaurav: 11A/25 – 8000 = 3000 => A = 25000
The volume and height of a cylinder are 7986 cm3 and 21 cm. Find the radius of the cylinder.
The mean proportional of a and b is c. What is the mean proportional of a2 c and b2 c?
In triangle ABC, AD is the angle bisector of angle A. If AB = 8.4 cm and AC = 5.6 cm and DC = 2.8 cm, then the length of side BC will be:
An equilateral triangle ABC is inscribed in a circle with centre O. D is a point on the minor are BC and ∠ CBD = 40°. Find the measure of ∠ ...
The mean proportion of 169 and 144 is:
If the area of a square is 144 cm² and the breadth of a rectangle is 20% more and the length is 50% more than the side of the square, then find the rat...
Find the minimum length of a rubber band which can tie three circular pipe of radius 21 cm?
The average weight of a group of five persons, A, B, C, D, and E is 78 kg. If another person K joins the group then the average weight of the group is d...
The ratio of length to breadth of a rectangle is 5:4, respectively. Perimeter of rectangle is 288 cm. If each side of a square is 25% more than the brea...
If the radius of a cylinder is 17 cm and its curved surface area is 1309 cm2 then find the height of the cylinder?
