TCS Company Numerical Ability Permutation and Combination

49 members attended the party. In that 22 are males, 27 are females. The shake hands are done between males, females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are possible?

Read Solution (Total 4)

apply combinations for 12 people 12C2 = 66 Hand shakes
10 years agoHelpfull: Yes(22) No(1)

Ans : only 12 people shaked their hands, then total hand shakes are 12C2 = 66
9 years agoHelpfull: Yes(4) No(0)
12c 2=12*11/2=66
10 years agoHelpfull: Yes(2) No(0)
49c12*12c2
9 years agoHelpfull: Yes(2) No(0)

TCS Other Question

a grocer bought 24 kg coffee beans at price x per kg.after a while one third of stock got spoiled so he sold the rest for $200 per kg and made a total profit of twice the cost what must be the price of x ( 1 Marks )

(1) 44.44
(2) 55.55
(3) 66.66
(4) 77.77 Given a line segment AB having ten points on it and another line segment AC having eight points. How many triangles can be formed joining the dots.
a- 960
b-720
c- 780
d- none of the above