Question

unit digit of two digit number is three times its 10 digit. If the unit digit is 6.find the number

Answer 1

let 'x ' and 'y' be the unit and tens digit of required two digit number.

original number = 10y+ x

given ,unit digit( x= 3 × y )

since unit digt ( x = 6 )

6 = 3 × y => y = 6/3 = 2

then , y = 2

required two digit number= 10y + x

=10×2 + 6 = 20 + 6 = 26

therefore, the number is 26.
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Your Answer : 26
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