Learn
QUESTION
Q
If 75 % of a class answered the first question on a certain test correctly, 55 percent answered the second question on...
Solution
Let, the total number of students in the class = 100Then the number of students who answered first question correctly is = n(1) = 75Then the number of students who answered second question correctly is= n(2) = 55Then the number...
Register & Unlock access to Prep for free
Solution
.hez-title-solution{display: none;}
Keynote
n(a U b) = n(a) + n(b) − n(a ∩ b)
0
Set Theory questions available for your Free Practice
0
Quantitative Ability questions available for your Free Practice
RBI
NMAT
XAT
Arrangements & Rearrangements
Important Days
Taglines
Sentence Improvement
Data Problems
GMAT
Simple Equations
Caselet DI
Verbal Ability
Bar Graphs
Geometry
Quadratic Relations
Directions
Authors & Books
Coordinate Geometry
Miscellaneous - VA
Inequalities
Data Interpretation
Number Series
Mixtures and Allegations
Percentages
Tabular Data
Mensuration
Marketing
Vocabulary
UPSC
Polity
Circular Arrangement
Averages
Expansions
Numbers
IIFT
Science & Technology
Probability
MAT
LIC
SBI
Pie Chart
GATE
Series
Spot the Error
Marketing
APPSC
Time & Work
CAT
Arithmetic Operations
Profit and Loss
Algebra
TCS
Cloze Test
Placement Tests
Miscellaneous - QA
Data Sufficiency - LR
Current Affairs 2015
Order arrangement
Ratio & Proportion
Blood Relations
Parajumbles
Set Theory
Syllogisms
Progressions & Series
Logarithms
Speed, Time & Distance
Functions
Computer Knowledge
Passages
Fill in the Blanks
Symbols & Notations
Coding & Decoding
Verbal Reasoning
Quadratic Equations
Logical Reasoning
General Awareness
GRE
Trigonometry
IBPS
Input - Output
Line Graphs
Computers
SSC
Permutations & Combinations
Simple & Compound Interest
Environment & Biodiversity
General
CMAT
Miscellaneous - GA
Analogies
Mathematical Inequalities
Number System
Clocks & Calendars
Quantitative Ability
Word Building
Practice
0
questions for Free
