Aptitude - Problems on Numbers - Discussion
Discussion Forum : Problems on Numbers - General Questions (Q.No. 3)
3.
The difference between a two-digit number and the number obtained by interchanging the positions of its digits is 36. What is the difference between the two digits of that number?
Answer: Option
Explanation:
Let the ten's digit be x and unit's digit be y.
Then, (10x + y) - (10y + x) = 36
9(x - y) = 36
x - y = 4.
Video Explanation: https://youtu.be/7QOJjAmGVx0
Discussion:
59 comments Page 5 of 6.
Arun said:
1 decade ago
I need more explanations for this problem.
Anoj said:
6 years ago
How can it solve using only one variable?
(1)
Prince said:
1 decade ago
Thanks you anshu mam & aravind sir.
Nani said:
1 decade ago
Why we are adding 10x+y why n't 10xy?
Jisha said:
1 decade ago
Please explain properly step by step.
Qasim said:
10 years ago
Why do we interchanging the number?
Meghna jain said:
1 decade ago
Please explain in simple form.
Nagma jabee said:
10 years ago
Thanks @Nikhilesh and Isran.
Aparna devi said:
1 decade ago
Why have they taken 10 only?
Bhola nath mahakur said:
8 years ago
Thanks for the explanation.
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