Learn
QUESTION
Q
A consignment of 20 picture tubes contains 5 defectives. Two tubes are selected one after the other at random. The...
Solution
Number of ways of selecting one defective pipe is = 5C1 = 5Number of ways of selecting one pipe from 20 = 20C1 = 20Probability of selecting a defective pipe = 5/20 =...
Register & Unlock access to Prep for free
Solution
.hez-title-solution{display: none;}
Keynote
#hez-keynote-title{display: none;}
0
Probability questions available for your Free Practice
0
Quantitative Ability questions available for your Free Practice
Input - Output
Fill in the Blanks
Geometry
Mathematical Inequalities
RBI
Verbal Reasoning
Parajumbles
Averages
Speed, Time & Distance
Marketing
CAT
Profit and Loss
Verbal Ability
Current Affairs 2015
Probability
CMAT
Circular Arrangement
Polity
Pie Chart
SSC
Quadratic Relations
Ratio & Proportion
Marketing
General Awareness
GRE
Arithmetic Operations
APPSC
Order arrangement
Logarithms
Science & Technology
Line Graphs
Sentence Improvement
Spot the Error
Analogies
Trigonometry
Time & Work
Computers
Logical Reasoning
Placement Tests
General
Mixtures and Allegations
Coding & Decoding
Simple & Compound Interest
Caselet DI
Bar Graphs
Vocabulary
Mensuration
Miscellaneous - GA
Arrangements & Rearrangements
Quantitative Ability
XAT
Permutations & Combinations
Progressions & Series
Number System
Coordinate Geometry
Environment & Biodiversity
Series
Number Series
Directions
Important Days
Computer Knowledge
Taglines
Tabular Data
Percentages
Passages
Simple Equations
Data Interpretation
Inequalities
IIFT
UPSC
Blood Relations
GATE
Numbers
Expansions
Set Theory
NMAT
Algebra
TCS
MAT
Data Sufficiency - LR
Authors & Books
Word Building
Symbols & Notations
Miscellaneous - VA
Miscellaneous - QA
LIC
Cloze Test
Quadratic Equations
Syllogisms
Clocks & Calendars
IBPS
Data Problems
GMAT
Functions
SBI
Practice
0
questions for Free
