40% of 50% of 120 = (40/100)*(50/100)*120 = 24.
2050 divided by 100 gives you 0.5, which is 1%, if you then multuiply 0.5 x 40 you can find 40%, which is 20.20
50%% rate:= 20/40 * 100%= 0.50 * 100%= 50%
40/50 x 100 = 80 percent.
20/50*100 = 40%
40 is what percent of 50:= 40 / 50= 0.8Converting decimal to a percentage:0.8 * 100 = 80%
Express percent as decimal: 50% = 50/100 = 0.50 and 80% = 80/100 = .80 so .5o times .80 = .40 = 40%
50 percent times 40 = 2050% * 40= 50%/100% * 40= 5/10 * 40= 1/2 * 40= 40/2= 20
it will be (30*300/100)-(40*400/100)+(50*500/100)=500. hope it will help.
% change =[(50-40)/50] x 100% = 20% (decrease)