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A certain number of two digits is three times the sum of the digits and if 45 added to it, the digits are reversed. The number is

 

(a)

23

(b)

27

(c)

32

(d)

72



Question ID - 54146 | SaraNextGen Top Answer

A certain number of two digits is three times the sum of the digits and if 45 added to it, the digits are reversed. The number is

 

(a)

23

(b)

27

(c)

32

(d)

72

1 Answer
127 votes
Answer Key / Explanation : (b) -

Let the ten’s digit be  and the unit’s digit be

Then,

              ...

Solving  we get

Required number = 27.

127 votes


127