200:40 find there GCM, greatest common multiple which is 40
divide each side be 40
5:1
Simply reduce both sides of the ration by the same proportions, so.. 200:40 is the same as 100:20 or 50:10 or 5:1
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0.6/2.4 = 0.1/4 = 1/40
If there are 20 red marbles and 40 blue marbles, the ratio of red to blue is 1 over 2. The number of white marbles does not matter.
The ratio of girls to total students is 15:25, or 3:5. Three out of five students are girls so there would be a 60% probability that a girl would be chosen; a 2 out of 5 chance, or 40% probability that a boy would be chosen.
The probability is: 55/200 or 11/40
To find 40 percent of 750 ml, you would first convert 40 percent to a decimal by dividing by 100, which gives you 0.40. Then, you would multiply 0.40 by 750 ml to get the answer. Therefore, 40 percent of 750 ml is 300 ml.