Question
A mixture contains ‘x’% milk. 30% of this mixture is
taken out and is replaced with same quantity of water. This procedure is repeated two more times. If the resultant mixture contains 17.15% milk, then find the value of ‘x’.Solution
According to question, => 17.15 = x × (7/10) × (7/10) × (7/10) => x = 50
Find the wrong number in the given number series.
120, 126, 138, 162, 220, 306
In each of the following giving number series, a wrong number is given. Find out the wrong number?
46 23 23 34.5 70 172.5
...23, 36, 53, 69, 95, 124, 155
Find the wrong number in the given number series.
253, 542, 216, 579, 179, 620
Find the wrong number in the given number series.
24, 120, 721, 5040, 40320, 362880
3, 4, 9, 28, 116, 566, 3397
2 4 11 37 150 771
...210, 140, 105, 84, 70, 63, 52.5
- Find the wrong number in the given number series.
9, 13, 22, 47, 96, 197 131, 212, 261, 286, 295, 299