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Ajit Kumar Ojha

· started a discussion

· 1 Months ago

5 (Question: 423093.0 )

OHHH bad management
sir 39 hoga because jo new number ban raha hai purane se 54 jada hai so 39 hi hoga aap logo ke chalte performance down ho jarha hai

Question:

The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, Find original number.

Options:
A)

39

B)

57

C)

66

D)

93

Solution:

Ans:(a) Let the unit & tens digit of num. is x and y

Number = 10 x + y

According to question,    x + y = 12  …(i)

(10 y + x) - (10x + y)  = 54

10y + x - 10x - y = 54

9y - 9x = 54

 y - x = 6      …(ii)

Solving eqn (i)    and eqn (ii), we get

x = 3, y = 9

∴ Number = 10 × 3 + 9 = 39

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