TCS Company

Is z less than w? z and w are real numbers.
(I) z2 = 25
(II) w = 9
To answer the question,
a) Either I or II is sufficient
b) Both I and II are sufficient but neither of them is alone sufficient
c) I & II are sufficient
d) Both are not sufficient

Read Solution (Total 2)

b) Both I and II are sufficient but neither of them is alone sufficient

Because z can have value -5 or +5 (as z^2=25) and both are less than 9.
13 years agoHelpfull: Yes(15) No(1)

z=5,w=9; so the ans will be C
13 years agoHelpfull: Yes(1) No(1)

TCS Other Question

There are 9 cards. Arrange them in a 3*3 matrix. Cards are of 4 colors. They are red, yellow, blue, green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. At least one green card in each row.
A speaks truth 70% of the time; B speaks truth 80% of the time. What is the probability that both are contradicting each other?