Question
In a row A is 13th from the left and B is 16th from the
right, after interchanging their positions A becomes 27th from the left. Find the total no of persons in a row?Solution
     Total no of persons in a row = person position after change +  other person position before change – 1         Total no of persons in a row = (27 + 16)-1                                                            =42
Find the wrong number in given series.
1759, 1765, 1785, 2047, 2099, 2209
Find the wrong number in the given number series.
360, 359, 351, 324, 260, 135
Find the wrong number in the given number series.
237, 526, 165, 608, 77, 702
14, 16, 22, 46, 172, 886
Find the wrong number in the given number series.
1, 3, 10, 21, 64, 129, 356, 777
- In the given number series, find the wrong number.
5, 10, 15, 20, 25, 31, 35 63Â Â Â Â Â 98Â Â Â Â Â 140Â Â Â Â Â 192Â Â Â Â Â 251Â Â Â Â 318
...42, 85, 172, 343, 687, 1375
12, 14, 18, 26, 38, 64
8137, 5405, 3669, 2701, 2201, 1997