Question
An 84-litre mixture contains 75% milk. If 'x' litres of
water are added to this mixture, the quantity of milk in the resulting mixture becomes 27 litres more than the quantity of water. Determine the value of 'x'.ÂSolution
Quantity of milk in the mixture = 75% of 84 = 63 litres Quantity of water in the mixture = 25% of 84 = 21 litres According to question, 63 – (x + 21) = 27 42 – x = 27 x = 15 litres So, the value of ‘x’ is 15 litres.
Find the wrong number in the given number series.
4, 7, 12, 19, 30, 43, 61
4Â Â Â Â Â 6Â Â Â Â Â Â 12Â Â Â Â Â 30 Â Â Â Â Â Â 90 Â Â Â Â Â Â Â 310
...Find the wrong number in the given series.
46, 104, 184, 404, 760, 1586
- Find the wrong number in the given number series.
118, 150, 178, 206, 238, 266 21, 44, 78, 121, 179, 246
Find the wrong number in the given number series.
30, 26, 24, 18, 14, 10
Find the odd one out in the following series:
159, 240, 256, 292, 373, 420
4, 8, 24, 96, 485, 2880, 20160
Find the wrong number in the given number series.
45,  54, 79, 128, 189,  330,  499
75, 450, 225, 1330, 675, 4050
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