CAT & OMETs JEE JEE Foundation IPMAT GMAT Adda Success Stories

91- 6303239042 🏹Dussehra (17-20 Oct)

Question 58

The average age of an adult class is 40 years. 12 new students with an average age of 32 years join the class, thereby decreasing the average by 4 years. The original strength of the class was

Solution

Le the number of students originally in a class be n.

By averages concept,

ΣN = 40n

Σnew = 32*12 = 384

new average = 36

ΣN + Σnew = 36(n+12)

40n + 384 = 36n + 432

4n = 48

n = 12

Was this solution helpful?

Get AI Help

View More Questions From Quant

Create a FREE account and get:

All Quant Formulas and Shortcuts PDF
100+ previous papers with solutions PDF
Top 5000+ MBA exam Solved Questions for Free

maruti sir image

MAT Quant Questions | MAT Quantitative Ability

MAT Inequalities Questions MAT Number Series Questions MAT Geometry Questions MAT Percentages Questions MAT Functions, Graphs and Statistics Questions MAT Averages, Ratio and Proportion Questions MAT Probability, Combinatorics Questions MAT Logarithms, Surds and Indices Questions MAT Progressions and Series Questions MAT Quadratic Equations Questions MAT Remainders Questions MAT Averages Mixtures Alligations Questions MAT Time And Work Questions MAT Logarithms Questions MAT Simple Interest Compound Interest Questions MAT Averages Questions MAT Data Sufficiency Questions MAT Algebra Questions MAT Profit and Loss Questions MAT Arithmetic Questions MAT Time Speed Distance Questions MAT Time, Speed and Distance Questions MAT Linear Equations Questions MAT Venn Diagrams Questions MAT Mensuration Questions MAT Profit And Loss Questions MAT Coordinate Geometry Questions MAT Number Systems Questions MAT Miscellaneous Questions

MAT DILR Questions | LRDI Questions For MAT

MAT Puzzles Questions MAT Quant Based LR Questions MAT Games and Tournaments Questions MAT Data Interpretation Questions MAT Routes And Networks Questions MAT Miscellaneous LR Questions MAT Coins and Weights Questions MAT Scheduling Questions MAT Charts Questions MAT DI Miscellaneous Questions MAT DI with connected data sets Questions MAT Table based DI Sets Questions MAT Quant Based DI Questions MAT Venn Diagrams Questions MAT 2D & 3D LR Questions MAT Selection With Condition Questions MAT Maxima-Minima Questions MAT Data change over a period Questions MAT Data Interpretation Basics Questions MAT Arrangement Questions MAT Special Charts Questions MAT Truth Lie Concept Questions

MAT Verbal Ability Questions | VARC Questions For MAT

MAT Para Summary Questions MAT Odd One Out Questions MAT Vocabulary Questions MAT Grammar and Sentence Correction Questions MAT Para Jumbles Questions MAT Verbal Ability Questions MAT Reading Comprehension Questions MAT Critical Reasoning Questions

Free MAT Topicwise Questions

MAT Averages MAT Ssc Reasoning MAT Averages, Ratio and Proportion MAT DI Miscellaneous MAT Logarithms, Surds and Indices MAT 2D & 3D LR MAT Charts MAT Coins and Weights MAT Selection With Condition MAT Routes And Networks MAT Scheduling MAT Time, Speed and Distance MAT Functions, Graphs and Statistics MAT Quant Based DI MAT Venn Diagrams MAT Number Series MAT Quadratic Equations MAT Truth Lie Concept MAT Geometry MAT DI with connected data sets MAT Verbal Ability MAT Para Summary MAT Miscellaneous LR MAT Number Systems MAT Probability, Combinatorics MAT Profit And Loss MAT Reading Comprehension MAT Para Jumbles MAT Percentages MAT Arithmetic MAT Puzzles MAT Logarithms MAT Critical Reasoning MAT Data Interpretation Basics MAT Profit and Loss MAT Maxima-Minima MAT Special Charts MAT Data Interpretation MAT Data change over a period MAT Remainders MAT Odd One Out MAT Time And Work MAT Simple Interest Compound Interest MAT Quant Based LR MAT Algebra MAT Data Sufficiency MAT Mensuration MAT Progressions and Series MAT Averages Mixtures Alligations MAT Venn Diagrams MAT Linear Equations MAT Games and Tournaments MAT Coordinate Geometry MAT Time Speed Distance MAT Grammar and Sentence Correction MAT Vocabulary MAT Arrangement MAT Table based DI Sets MAT Inequalities MAT Miscellaneous

Book Free CAT Mentorship

Get personalized CAT strategy from a 99%iler

500+ students mentored

CAT mentor

Phone Number

Preferred Time

Join CAT 2026 course by 5-Time CAT 100%iler

Start your IIM journey with the right preparation and crack CAT 2026.

Enroll Now

cracku download image

Ask our AI anything

AI can make mistakes. Please verify important information.