Question
In a mixture, the ratio of milk to water is 4:5. If the
mixture is augmented by adding 12 liters of milk and 20 liters of water, the new ratio of milk to water changes to 3:4. Determine the original quantity of the mixture.Solution
Let quantity of milk and water in the initial mixture be ‘4x’ litres and ‘5x’ litres, respectively. According to the question, (4x + 12)/(5x + 20) = 3/4 Or, 16x + 48 = 15x + 60x Or, x = 12 Quantity of initial mixture = (4 + 5) × 12 = 108 litres
23, 28, 38, 49, 62, ?
12, 16, ?, 48, 76, 112
28, 43, 73, 118, ?, 253
What will come in place of the question mark (?) in the following series?
4, 8, 24, ?, 480, 2880
What value should come in the place of (?) in the following number series?
15, 21, ?, 41.16, 57.624
11Â Â Â Â Â Â Â Â Â Â 22.5Â Â Â Â Â Â Â 47Â Â Â Â Â Â Â Â Â Â 102Â Â Â Â Â Â Â Â 236Â Â Â Â Â Â Â Â ?
...64, 32, 48, 120, 420, ?
18, 30, 54, 90, 138, ?
What will come in place of the question mark (?) in the following series?
35, 38, 46, ?, 85, 120
What will come in place of the question mark (?) in the following series?
68, 76, 61, 85, ?, 98
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