Q. 53.6( 29 Votes )

# <span lang="EN-US

Answer :

let the number at digit place be

So, da igit at tens place is 2x.

Number is 10×2x + x = 21x

Now interchanging the digits, at digit place we have 2x and at tens place x.number is 10×x + 2x = 12x

According to the given condition’s 12x + 21x = 66

33x = 66

Dividing both side by 33

X = 2

Digit at tens place is 2 × 2 = 4

Number is 42

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)

<span lang="EN-USMHB - Mathematics (New)