Question

in a two digit number the digit at unit place is double the digit at tens place the number exeed the sum of the digit by 18 find the number​

Answer 1

Answer:

let the tens digit be x

unit digit= 2x

A/Q

x+2x=18

3x=18

x=18/3

x=6

HENCE,

NO. IN UNIT DIGIT=2×6=12

TENS DIGIT= 6

SO NO. BE

WE KNOW THAT IN TENS PLACE WE HAD TO MULTIPLY THE NO. BY 10

SO..

6×10+12=60+12=72

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