CTS Company Numerical Ability Probability

If from a deck of 52 cards,4 cards are selected and 1 card of it should be spade and another should be heart,in how many ways can these cards be selected?
a)13^250C2
b)52C4
c)2650C2
d)13C4

Read Solution (Total 5)

Option a) 13^2*50C2
13C1 spades
13C1 hearts
remaining 2 cards will be choosen in 50C2 ways..
8 years agoHelpfull: Yes(23) No(1)

ans option a)13^2*50C2
8 years agoHelpfull: Yes(7) No(7)
1 from spade 13c1 and 1 from heart 13c1 rest from 50c2 so (1) option 13^2*50c2
8 years agoHelpfull: Yes(3) No(2)
26*52c2 because four cards should be select
6 years agoHelpfull: Yes(0) No(5)
answer: a 13^2*50C2
3 years agoHelpfull: Yes(0) No(0)

CTS Other Question

A machine worth Rs.180000 depreciates at the rate of 18% of the value of machine per annum.The value of machine after 18 months from now will be?
a)Rs.2,31,516
b)Rs.1,34,316
c)Rs.1,50,000
d)Rs.1,00,000 The population of the town 3 years ago was 'b' and the population of the town for next 3 years fro now will be 'c'.what is the current population of the town i the growth rate is same?
a)square root of bc
b)b square root of c
c)c square root of b
d)b square root of(b/c)
e)square root of b/c