TCS
Company
Numerical Ability
Probability
. A man has some socks in his drawer - 18 identical blue, 24 identical red, and 22 identical black. The lights are out and it is totally dark. How many socks must he take out to make sure he has a pair of each colour?
O 32
O 48
O 42
O 34
Read Solution (Total 3)
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- 24+22+2= 48
- 12 years agoHelpfull: Yes(19) No(10)
- How can it be highest + 2nd highest + ? (2) only ..?
- 12 years agoHelpfull: Yes(6) No(7)
- 32
24/2=12
18/2=9
22/2=11
12+11+9=32 - 11 years agoHelpfull: Yes(1) No(5)
TCS Other Question
19 people (a1,a2,......,a19) are invited to a party. The host and the hostess shake hands with each invitee and also with each other. The invitees shake hands in a circular fashion, i.e. the pairs (a1, a2), (a2, a3),......,(a18, a19), (a19, a1) shake hands. So, in all there are 58 handshakes. Let S be a set of people such that every pair in S shake hands. The size of S is at most
O 2
O 3
O 1
O 4
A sheet of paper has statements numbered from 1 to 16. For all values of n from 1 to 16, statement n says 'At least n of the statements on this sheet are false.' Which statements are true and which are false?
O The even numbered statements are true and the odd numbered are false.
O The odd numbered statements are true and the even numbered are false.
O The first half of the statements are true and the last half statements are false.
O The first half of the statements are false and the last half statements are true.