A stationer brought 2000 exercise books. He distributes 200 exercise books to the students from poor economic background as donation. He sold each of the remaining exercise books at Rs. 10 more than the cost price of each and gained 8% , find the cost price of each exercise book.

What is the shape of the height and weight distribution

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?

M? aoc=96 ? space, m, angle, a, o, c, equals, 96, degree \qquad m \angle boc = 8x - 67^\circm? boc=8x? 67 ? space, m, angle, b, o, c, equals, 8, x, minus, 67, degree \qquad m \angle aob = 9x - 75^\circm? aob=9x? 75 ? space, m, angle, a, o, b, equals, 9, x, minus, 75, degree find m\angle bocm? bocm, angle, b, o, c: