Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Let m and 
be two 2-digit numbers. Then the total numbers of pairs
, such that 
, is.
Text Solution
Verified by ExpertsThe correct answer is:
64
(64)
Let 
where 
are co-prime numbers also since 
are 2 digit nos, so
i.e. 
( 
is integer)
Now
are co-prime
if
64 ordered pairs
──────────────────────────────────────────────────────────────────────────────────────────
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Physics Section-A
A radioactive material first decays into and then decays to non-radioactive
m…
There are ' n ' number of identical electric bulbs, each is designed to draw a power
p independentl…
Consider a rectangular sheet of solid material of length and width
. The coefficient of linear e…
Given below are two statements:
Statement (I) : The dimensions of Planck's constant and angular mom…
A cylindrical rod of length 1 m and radius 4 cm is mounted vertically. It is subjected
to a shear f…
From the combination of resistors with resistance values
and , which of the following combinatio…