Question

Give me the answer of 7 pls

Answer 1

Answer:

Assume digit in tens place be 't' and in units place be 'u'

Then,

t = 3u ----> 1

10t + u = 36 + 10u + t

9t - 9u = 36

Subs. from eq. 1

9(3u) -9u = 36

27u - 9u = 36

18u = 36

u = 2

Putting value of u in eq. 1

t = 3*2

t = 6

Hence, the original number is 62.

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