Question 21
$$N$$ is a two-digit number. When $$6$$ is added to the tens digit and $$2$$ is subtracted from the units digit, we get a two-digit number which is equal to $$3N$$. Then $$N$$ is ______.
Correct Answer: 29
Solution
Let $$N=10a+b$$. The new number is $$10(a+6)+(b-2)=N+58$$, and it equals $$3N$$. Hence $$N+58=3N$$, so $$N=29$$.
Get AI Help
Book Free CAT Mentorship
Get personalized CAT strategy from a 99%iler
500+ students mentored
OTP Verification
Enter the 6-digit code sent to your phone
Booking Summary
Session:Free CAT Mentorship
Phone:
Date:
Time:
Enter OTP
Didn't receive the OTP?
