CAT 2003 QA (Leaked) Question

Question 81

How many three digit positive integers, with digits x, y and z in the hundred's, ten's and unit's place respectively, exist such that x < y, z < y and x $$\neq$$ 0 ?

Solution


 x, y and z in the hundred's, ten's and unit's place. So y should start from 2

If y=2 , possible values of x=1 and z = 0,1 .So 2 cases 120,121.

Also if y=3 , possible values of x=1,2 and z=0,1,2.

Here 6 three digit nos. possible .

Similarly for next cases would be 3*4=12,4*5=20,5*6=30,.....,8*9=72 . Adding all we get 240 cases. 

Share on Whatsapp Share on Whatsapp

Video Solution

video

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 DILR Questions | LRDI Questions For CAT

CAT Verbal Ability Questions | VARC Questions For CAT

Also Read

CAT Mock Tests
CAT 2025 Course
Free CAT Preparation
CAT Questions
CAT Formulas PDF
CAT Study Material
CAT Score vs Percentile
CAT Score Calculator
CAT Percentile Predictor
CAT Sectional Tests
CAT Exam
CAT Prep Videos
CAT Registration
CAT Syllabus 2025
CAT Eligibility Criteria
CAT Admit Card
cracku

Boost your Prep!

Download App