A trader bought the number of articles Rs.900.Five articles were found damaged .He sold each of the remaining articles at Rs.2 more than what paid for it and got a profit of Rs.80 on the whole transaction .Find the number of articles he bought??
solve the following linear programming problem graphically,maximise z=4x+y
A deflected beam is the shape of a parabola x^2 = 4ay. The beam is supported at its ends which are 12 cm apart. The deflection in centre is 9 cm only. Find the points on the beam where deflection is 5 cm