TCS Company Numerical Ability

In T.Nagar the building were numbered from 1 to 100.Then how many 4’s will be present in the numbers?
a)18
b)19
c)20
d)21.

Read Solution (Total 3)

ans is c)20
4,14,24,34,40,41,42,43,44,45,46,47,48,49,54,64,74,84,94
9 years agoHelpfull: Yes(7) No(4)

b)19(9+10)
4,14,24,34,,54,64,74,84,94 =tot 9
40,41,42,43,44,45,46,47,48,49 =tot 10
9 years agoHelpfull: Yes(3) No(6)
b)19
4,14,24,34,44,54,64,74,84,94 = 10
40,41,42,43,,45,46,47,48,49 = 9
so total=19
9 years agoHelpfull: Yes(0) No(5)

TCS Other Question

20 men handshake with each other without repetition. What is the total number of handshakes made?
a)190
b)210
c)150
d)250
A lady had fine gloves and hats. 25 blue, 7 red and 9grey. She had to select a pair among them. But there was no light so she had to select in darkness the correct pair with a glove and a hat. Therefore how many combinations of same color she can select?