A 120 litres mixture contains 40% milk and rest water. How much water should be added to the mixture, such that milk constitutes 25% of the resultant mixture.
Quantity of milk in the initial mixture = 0.4 X 120 = 48 litres Since, quantity of milk remained unchanged Therefore, total quantity of the resultant mixture = (48/0.25) = 192 litres Quantity of water to be added = 192 - 120 = 72 litres
22, 38, 74, 138, ?, 382
What will come in place of the question mark (?) in the following series?
24, 25, 34, 59, 108, 189, ?
16, 32, 68, 132, ?, 376
156, 237, 286, 311, 320, ?
7, 6, 10, 27, 104, ?
9 10 36 333 ? 132825
...625, 125, 375, 75, 225, 45, ?
33, ?, 66, 82.5, 99, 115.5
18 19 34 111 428 2165 ?
...58 83 133 ? 308 433
