Question 104

The last digit of the number obtained by multiplying the numbers $$81 \times 82 \times 83 \times 84 \times 85 \times 86 \times 87 \times 88 \times 89$$ will be

Solution

Share

To get the last digit, we could simply find the product of last digits of all the numbers i.e. 1*2*3*4*5*6*7*8*9.
As, there is 5 and 2 in the multiplication, 10 becomes a factor of the product and thus last digit will surely be 0.

Was this solution helpful?

Get AI Help

View More Questions From Number Systems

Create a FREE account and get:

  • Download Maths Shortcuts PDF
  • Get 300+ previous papers with solutions PDF
  • 500+ Online Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Logarithms, Surds and Indices QuestionsCAT Probability, Combinatorics QuestionsCAT Data Sufficiency QuestionsCAT Logarithms QuestionsCAT Progressions and Series Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Truth Lie Concept QuestionsCAT Maxima-Minima QuestionsCAT 2D & 3D LR QuestionsCAT Miscellaneous LR QuestionsCAT Coins and Weights Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Vocabulary QuestionsCAT Grammar and Sentence Correction QuestionsCAT Para Summary QuestionsCAT Verbal Ability QuestionsCAT Para Jumbles Questions

Free CAT Quant Questions

CAT Logarithms, Surds and IndicesCAT LogarithmsCAT Number SystemsCAT Averages Mixtures AlligationsCAT Profit And LossCAT GeometryCAT Averages, Ratio and ProportionCAT Venn DiagramsCAT Probability, CombinatoricsCAT InequalitiesCAT PercentagesCAT Data SufficiencyCAT MiscellaneousCAT Functions, Graphs and StatisticsCAT Linear EquationsCAT Profit and LossCAT Simple Interest Compound InterestCAT Time And WorkCAT RemaindersCAT Time Speed DistanceCAT AveragesCAT Progressions and SeriesCAT MensurationCAT Time, Speed and DistanceCAT ArithmeticCAT Coordinate GeometryCAT Quadratic EquationsCAT Number SeriesCAT Algebra

Book Free CAT Mentorship

Get personalized CAT strategy from a 99%iler

500+ students mentored
CAT mentor

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

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

Enroll Now
Ask AI