3. Make the greatest and the smallest 4-digit numbers using any four different digits with conditions as given.

(a) Digit 7 is always at one's place  
              Greatest - 9 8 6 7
              Smallest - 1 0 2 7
                   (Note, the number cannot begin with the digit 0. Why?)
             
(b) Digit 4 is always at tens place 
                  Greatest - _ _ 4 _
                   Smallest - _ _ 4 _

(c) Digit 9 is always at hundreds place  
                   Greatest - _ 9 _ _
                    Smallest - _ 9 _ _
(d) Digit 1 is always at thousands place 
                    Greatest- 1 _ _ _
                     Smallest - 1 _ _ _

Answers (2)

(b) Digit 4 is always at tens place 
                  Greatest - 9847
                  Smallest - 1042


(c) Digit 9 is always at hundreds place  
                   Greatest - 8976
                   Smallest - 1902 


(d) Digit 1 is always at thousands place 
                    Greatest- 1987
                    Smallest - 1023

A) ans. 

greatest = 9867

smallest = 1027 

 

Most Viewed Questions

Preparation Products

Knockout NEET May 2024

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 40000/-
Buy Now
Knockout NEET May 2025

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 45000/-
Buy Now
NEET Foundation + Knockout NEET 2024

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 54999/- ₹ 42499/-
Buy Now
NEET Foundation + Knockout NEET 2024 (Easy Installment)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 3999/-
Buy Now
NEET Foundation + Knockout NEET 2025 (Easy Installment)

Personalized AI Tutor and Adaptive Time Table, Self Study Material, Unlimited Mock Tests and Personalized Analysis Reports, 24x7 Doubt Chat Support,.

₹ 3999/-
Buy Now
Boost your Preparation for JEE Main with our Foundation Course
 
Exams
Articles
Questions