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A number consists of two digits. The sum of the digits is 9. If 63 is subtracted from the number, its digits are interchanged. Find the number.

 

(a)

64

(b)

49

(c)

81

(d)

91


Question ID - 54289 | Toppr Answer

A number consists of two digits. The sum of the digits is 9. If 63 is subtracted from the number, its digits are interchanged. Find the number.

 

(a)

64

(b)

49

(c)

81

(d)

91

1 Answer - 5876 Votes

3537

Answer Key : (c) -

Let the ten’s digit be  Then, unit’s digit be 9

Number =

Number obtained by reversing the digits =

So, ten’s digit = 8 and unit’s digit = 1.

Hence, the required number = 81.



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