Question

EXERCISE 22 (A)
The sum of the digits of a two-digit number is 9. The number is 6 times the units digit. Find the number.
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Answer 1

Answer:

let the two digit no be 10x+y

ATGQ,

x+y=9-----------1

10x+y=6y---------2

from 1

x=9-y

10×(9-y)+y=6y

90-10y+y=6y

90=15y

y=6

x+6=9

x=3

So the answer is 10x+y=36.

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