(1490+2x)/2/745=1303
1490+2x/2/745=1303
Two Way Classification
1. Three varieties of coal were analysed by 4 chemists and the ash content is tabulated here.
Perform...
a number is first increasedby 40 percent and then decreased by 25 percent again increased by 15 percent and then decreased by 20 p...
z x z= 12+13
7x^2+ 8x=x^2
1.8×10^-5÷0.04
1/2 * 1/ 10
