exam
Maths Puzzle
The number of ways which a mixed double tennis game can be arranged amongst 9 married couples if no husband and wife play in the same is:
A.
1514
B.
1512
C.
3024
D.
3028
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exam Other Question
There are five comics numbered from 1 to 5. In how many ways can they be arranged, so that part-1 and part-3 are never together?
A.
48
B.
72
C.
120
D.
210
Ten coins are tossed simultaneously. In how many of the outcomes will the third coin turn up a head?
A.
210
B.
29
C.
3×28
D.
None of these