Question
Quantity of water in a 350 litres mixture (alcohol +
water) is 22 litres less than the quantity of alcohol in it. Find the quantity of water to be mixed so that the quantity of alcohol in the mixture becomes 40% of the whole mixture.Solution
Quantity of water in the mixture = (350 – 22)/2 = 164 litres So, Quantity of alcohol in the mixture = (350 – 164) = 186 litres Total quantity of the mixture = 186 x (100/40) = 465 litres Therefore, quantity of water to be mixed = 465 – 350 = 115 litres
599, 631.9, 667.5, 707.5, 751.6, 800, 852.9
119, 200, 137, 182, 156, 164
20, 22, 47, 145, 585, 2920
99Â 124Â Â 160Â Â 209Â Â 273Â Â 355Â Â 454
Find the wrong number in the given number series.
1900, 1171, 669, 316, 100, - 25
Find the wrong number in the given number series.
45, 68, 39, 70, 27, 74
178, 184, 196, 216, 246, 286
13 Â Â Â 74 Â Â Â Â 355 Â Â Â Â Â 1416 Â Â Â Â Â 4245
109Â Â Â 106Â Â Â 101Â Â Â Â 94Â Â Â Â 86Â Â Â Â Â 74Â Â Â Â Â
...Find the wrong number in the given number series.
45,  54, 79, 128, 189,  330,  499