A stationer bought 2,000 exercise books. He distributed 200 exercise books to the students from poor economical background as donation. He sold each Of the remaining exercise books at Rs 10 more than the cost price of each of gained 8%. , find the cost price of each exercise book​

The trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? a) 48 cm2; 32 cm2; 80 cm 2 b) 48 cm2; 16 cm2; 64 cm 2 c) 128 cm2; 32 cm2; 160 cm 2 d) 128 cm2; 16 cm2; 144 cm 2