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25% of 1850= 25% * 1850= 0.25 * 1850= 462.5
48
25 percent equals 25/100 which also equals 0.25 So just do 0.25 x 450 = 112.5 or you can do 25/100 x 450 = 112.5 or you can do 25/100 = 1/4 450 divide 4 = 112.5 112.5 is 25 percent of 450
add 25ml more of solution x * 20 = 100 * 25 x = 25
percent of increase = (new amount - original amount)/original amount p = (35 - 25)/25 p = 10/25 = 2/5 p = 0.4 p = 40%