Learn
QUESTION
Q
A ship consists of 500 rooms — 200 AC rooms & 300 non AC rooms. In how many ways 500 families can be...
Solution
Of the 500 families, 50 families must be accomidate in AC rooms and 100 families must be accomidated in non AC rooms.
Remaining families = 500 − (100 + 50) = 350
Remaining AC rooms =...
Register & Unlock access to Prep for free
Solution
.hez-title-solution{display: none;}
Keynote
nCr = nCn−r
0
Permutations & Combinations questions available for your Free Practice
0
Quantitative Ability questions available for your Free Practice
Fill in the Blanks
Verbal Ability
Ratio & Proportion
Expansions
Simple Equations
Vocabulary
TCS
LIC
Order arrangement
Important Days
Series
Taglines
Marketing
Analogies
Algebra
Quadratic Equations
CMAT
Geometry
Set Theory
Polity
General
Miscellaneous - VA
Number System
Arithmetic Operations
Verbal Reasoning
Directions
Coordinate Geometry
Percentages
Mensuration
Computers
Simple & Compound Interest
Caselet DI
IBPS
Inequalities
GRE
Miscellaneous - GA
Syllogisms
Data Problems
Clocks & Calendars
Word Building
Quadratic Relations
Science & Technology
Functions
Speed, Time & Distance
RBI
Symbols & Notations
Numbers
General Awareness
Data Interpretation
Logarithms
Mixtures and Allegations
GMAT
Environment & Biodiversity
Computer Knowledge
NMAT
Number Series
Spot the Error
Profit and Loss
Sentence Improvement
SSC
Trigonometry
Mathematical Inequalities
Progressions & Series
IIFT
MAT
Current Affairs 2015
Blood Relations
XAT
Quantitative Ability
Placement Tests
Circular Arrangement
Coding & Decoding
Arrangements & Rearrangements
SBI
Permutations & Combinations
Miscellaneous - QA
Parajumbles
CAT
Data Sufficiency - LR
Logical Reasoning
Bar Graphs
GATE
Time & Work
Passages
Tabular Data
Input - Output
Marketing
Cloze Test
Averages
APPSC
UPSC
Line Graphs
Authors & Books
Pie Chart
Probability
Practice
0
questions for Free
