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the citizen of a planet are 6 fingered and have developed a number system in base 6.a certain street in the planet contains 100 building numbered from 1 to 100. how many 4's are used in numbering these buildings?express in base 10.
Read Solution (Total 3)
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- In base 6 numbers counted (0,1,2,3,4,5)
for 4 each digit count at least 2 time.
So, 4 will count 6*2=12 - 13 years agoHelpfull: Yes(6) No(3)
- 11
base 6.so numbers counted only (0,1,2,3,4,5) - 13 years agoHelpfull: Yes(0) No(10)
- In base 6 numbers counted (0,1,2,3,4,5)
for 4 each digit count at least 2 time.
So, 4 will count 6*2-1=11 - 13 years agoHelpfull: Yes(0) No(6)
TCS Other Question
There are 11 boys in a family. Youngest child is a boy. What is the probability of all are boys?
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