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1. In how many ways can 2 or more bonus books be selected from a set of 5 offered by a book club?

Read Solution (Total 3)

ans 26.
5c2 + 5c3 + 5c4+ 5c5 = 26
11 years agoHelpfull: Yes(26) No(0)

2 out of 5 books+ 3out of 5books+ 4 out of 5 books +5 out of 5 books
5c2+5c3+4c3+5c5= 10+10+5+1= 26 ans
11 years agoHelpfull: Yes(5) No(2)
10 ways.(ans)
11 years agoHelpfull: Yes(0) No(1)

TCS Other Question

32. Jyoti cycles to a shop and walks back. Her cycling speed is 1.5 times her walking speed. If she walks at the rate of 2m/s, what is her average speed for the entire journey? 3. The greatest number which is a perfect square as well as a factor of 1008.
a) 9 b) 4 c) 36 d) None of these