permutations and combination mcq Model Questions & Answers, Practice Test for ibps rrb so officer sclae 2 3 single exam 2024
ibps rrb so officer sclae 2 3 single exam 2024 SYLLABUS WISE SUBJECTS MCQs
Number System
Lcm & Hcf
Ratio & Proportion
Percentage
Time & Work
Mensuration
Advance Math
Trigonometric Ratios & Identities
Average
Profit & Loss
Alligation & Mixtures
Compound Interest
Linear Equations
Quadratic Equations
Probability
Permutations & Combination
How many new words are possible from the letters of the word PERMUTATION?
Answer: (b)
Number of 11 letter words formed from the letter
P, E, R, M, U, T, A, I, O, N = 11!/2!.
Number of new words formed
= total words – 1 = 11!/2! – 1.
From 6 boys and 7 girls a committee of 5 is to be formed so as to include atleast one girl. The number of ways this can be done is
Answer: (d)
From total 13 members 5 can be select as $^13C_5$
For at least one girl in the committee, number of ways are $^13C_5 – ^6C_1$
From a group of 6 men and 4 women a committee of 4 persons is to be formed. In how many different ways can it be done so that the committee has at least one woman?
Answer: (a)
Reqd. no. of ways
= $4C_1 × 6C_3 × 4C_2 × 6C_2 × 4C_3 × 6C_1 + 4C_4$
= 4 × ${6 × 5 × 4}/{1 × 2 × 3} + {4 × 3}/{1 × 2} × {6 × 5}/{1 × 2} + {4 × 3 × 2}/{1 × 2 × 3} × 6 + 1$
= 80 + 90 + 24 + 1=195
In how many ways can 5 prizes be distributed among 4 boys when every boy can take one or more prizes?
Answer: (c)
First prize may be given to any one of the 4 boys, hence first prize can be distributed in 4 ways.
Similarly every one of second, third, fourth and fifth prizes can also be given in 4 ways.
∴ the number of ways of their distribution
= 4 × 4 × 4 × 4 × 4 = $4^5$ = 1024.
If two dices are tossed simultaneously, the number of elements in the resulting sample space is
Answer: (a)
Number of elements in the sample space
= 6 × 6 = 36
(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)
ibps rrb so officer sclae 2 3 single exam 2024 IMPORTANT QUESTION AND ANSWERS
-
100+ Probability Aptitude Mcq Questions and Answers PDF »
-
100+ Quadratic Equation Questions Answers PDF for Bank »
-
HCF and LCM of Numbers Questions Answers PDF IBPS RRB SO »
-
Ratio and Proportion MCQ Questions PDF for IBPS RRB SO »
-
Top 100+ IBPS Trigonometry Questions with Solutions PDF »
-
Top Number System MCQ Questions Answers PDF: IBPS RRB SO »
-
100+ Average Aptitude Questions Answers solutions MCQ PDF »
-
IBPS Aptitude Linear Equations MCQ Questions Answers PDF »
-
New 100+ Compound Interest MCQ with Answers PDF for IBPS »
-
100+ Advanced Math Questions with Answers, PDF for IBPS »
-
100+ Mixture and Alligation MCQ Questions PDF for IBPS »
-
Top Permutations Combinations Practice Exercises for IBPS »
-
100+ Time and Work IBPS Questions Answers, Solutions PDF »
-
100+ Mensuration Practice Questions Answers, PDF for IBPS »
-
IBPS Profit and Loss Questions Solved Problems with PDF »
-
Top IBPS RRB SO Percentage Aptitude Questions Answers PDF »
ibps rrb so officer sclae 2 3 single exam 2024TOPICS
Read More
All Exams
-
SSC
»
Model MCQ Test [Syllabus Wise], Syllabus, Notification -
BANKING
»
Model MCQ Test [Syllabus Wise], Syllabus, Notification -
TNPSC
»
Model MCQ Test [Syllabus Wise], Syllabus, Notification
RECENT BLOGS
![SSC CHSL 2023 Tier 2: Syllabus PDF & Exam Pattern [Changed]](https://careericons.com/adminicon/bunch/images/ssc-chsl-tier-2-2023-new-revised-syllabus-pdf-s.jpg "SSC CHSL 2023 Tier 2: Syllabus PDF & Exam Pattern [Changed]")
Recently Added Subject & Categories For All Competitive Exams
Top Permutations Combinations Practice Exercises for IBPS
Permutations Combinations objective multiple choice questions with detailed answers for IBPS RRB SO. Attitude practice exercises for all bank exams
Continue Reading »
100+ Probability Aptitude Mcq Questions and Answers PDF
Probability objective multiple choice questions with detailed answers for IBPS RRB SO. More than 100+ Attitude practice exercises for all competitive exams
Continue Reading »
100+ Quadratic Equation Questions Answers PDF for Bank
Quadratic Equation multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »
IBPS Aptitude Linear Equations MCQ Questions Answers PDF
Linear equations multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams
Continue Reading »