R-SAT Exam undefined

Ram & Shyam attends an interview for two vacancies in the same Company.
The probability of Ram's selection is 1/5 and the probability of Shyam's Selections is 1/7. What is the probability that only one of them will get selected?
option
A. 2/7
B. None
C. 1/7
D. 3/7
E. 3/2

Read Solution (Total 3)

(1/5)*(6/7)+ (1/7)+(4/5)=2/7
10 years agoHelpfull: Yes(2) No(0)

either( R AND not S) OR ( S AND notR)
(P(R)*(1-P(S))) + (P(S)*(1-P(R))) = (1/5*6/7) +( 1/7 *4/5) = 2/7....answer A
10 years agoHelpfull: Yes(2) No(0)
12/35 IS THE ANSWER..SO B.nONE
10 years agoHelpfull: Yes(0) No(2)

R-SAT Other Question

In a factory, there are 40% technicians and 60% non-technicians. If the 60% of the technicians and 40% of non-technicians are permanent employees, then the percentage of workers who are temporary is =
option
A. None
B. 40%
C. 50%
D. 46%
E. 52%
The below question consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read the below statements and give the answer
Question: Among P,Q,R,S and T sitting in a straight line , facing North, who sits exactly in the middle of the line?
I.S sits third to the left of Q.S is an immediate neighbor of both P and T.
II. Two People sit between T and R.R does not sit at either of the extreme ends. P sits second to the right of T.
A. The data neither in statement I nor in statement II are sufficient to answer the question.
B. The Data either in statement I alone or in statement II alone are sufficient to answer the question.
C. The data in both statements I and II together are necessary to answer the question.
D. The data in statement I alone re sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
E. The data in statement II alone re sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question