Question
How many persons goes before
U? Five persons U, V, W, X and Y goes on five different days of the week starting from Monday to Friday. At most one person goes after X. Y goes two days before X. W goes before U. U goes before Thursday. V does not go on Thursday.ÂSolution
At most one person goes after X. Y goes two days before X. We get X goes on either Thursday or Friday. Y goes on either Tuesday or Wednesday. 
W goes before U. U goes before Thursday. V does not goes on Thursday. W goes on Monday and U goes on Wednesday or Tuesday. V goes on Friday or Thursday. Case 2 will get discarded as we cannot place V. V goes on Friday. 
Therefore, the final arrangement is given below: 
- Find the wrong number in the given number series.
8, 16, 32, 70, 128, 256 34, 51, 85, 119, 185, 221Â
Find the wrong number in the given number series.
456, 476, 452, 482, 454, 490
- Find the wrong number in the given number series.
118, 150, 178, 206, 238, 266 32, 48, 72, 108, 162, 248
120, 240, 80, 320, 60, 384
Find the wrong number in the given number series.
8, 12, 23, 40, 66, 103
A-5,  A,  35,  52, 78, 115
71 81 61 101 51 181
Find the wrong number in the given number series.
60, 120, 90, 180, 145, 270
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