Join WhatsApp Icon CAT WhatsApp Group
Question 28

All the page numbers from a book are added, beginning at page 1. However, one page number was added twice by mistake. The sum obtained was 1000. Which page number was added twice?

Solution

Share

If the number of pages is 44, the sum will be 44*45/2 = 22*45 = 990
So, the number 10 was added twice

View More Questions From Number Systems

Create a FREE account and get:

  • All Quant CAT complete Formulas and shortcuts PDF
  • 38+ CAT previous year papers with video solutions PDF
  • 5000+ Topic-wise Previous year CAT Solved Questions for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Functions, Graphs and Statistics QuestionsCAT Remainders QuestionsCAT Algebra QuestionsCAT Number Systems QuestionsCAT Venn Diagrams Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Table based DI Sets QuestionsCAT Routes And Networks QuestionsCAT Venn Diagrams QuestionsCAT Selection With Condition QuestionsCAT Quant Based LR Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Vocabulary QuestionsCAT Miscellaneous QuestionsCAT Reading Comprehension QuestionsCAT Critical Reasoning QuestionsCAT Grammar and Sentence Correction Questions

Free CAT Quant Questions

CAT Logarithms, Surds and Indices

CAT Profit And Loss

CAT Algebra

CAT Geometry

CAT Mensuration

CAT Number Systems

CAT Averages Mixtures Alligations

CAT Remainders

CAT Quadratic Equations

CAT Probability, Combinatorics

CAT Percentages

CAT Data Sufficiency

CAT Functions, Graphs and Statistics

CAT Number Series

CAT Progressions and Series

CAT Time Speed Distance

CAT Averages

CAT Time And Work

CAT Simple Interest Compound Interest

CAT Inequalities

CAT Linear Equations

CAT Arithmetic

CAT Logarithms

CAT Profit and Loss

CAT Coordinate Geometry

CAT Time, Speed and Distance

CAT Venn Diagrams

CAT Averages, Ratio and Proportion