Question
In how many different ways can 6 History and 5Hindi
books be arranged in a shelf so that they are arranged alternately?Solution
Number of ways = 6! × 5! = 720 × 120 = 86400
More Permutation and combination Questions
- Find the wrong number, in the given number series.
2, 5, 10, 17, 26, 39, 52 Find the wrong number in the given number series.
3, 8, 15, 24, 35, 50, 63
Find the wrong number in given number series.
2372, 2356, 2320, 2256, 2156, 2048.
324, 385, 460, 549, 651, 769
- Find the wrong number in the series.
2, 3, 7, 15, 31, 63, 127 1024 3072 384 1152 145 432
112, 222, 440, 872, 1717 , 3424
10, 35, 135, 360, 760, 1136, 2285.
768 2304 288 864 106 324
9 20 63 255 1285 7716
...
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