exam Maths Puzzle

There are 5 Rock songs, 6 Carnatic songs and 3 Indi pop songs. How many different albums can be formed using the above repertoire if the albums should contain at least 1 Rock song and 1 Carnatic song?

A.

15624

B.

16384

C.

6144

D.

240

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exam Other Question
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 A book-shelf can accommodate 6 books from left to right. If 10 identical books on each of the languages A,B,C and D are available, In how many ways can the book shelf be filled such that book on the same languages are not put adjacently.

A.

40P6
6!

B.

10×95

C.

6P4
2!

D.

4×35