1.

sum of the digits of a two digit number is 9 and the difference of the digits is 5 how many numbers can be found to satisfy the given conditions find the numbers​

Answer»

Answer:

72

Step-by-step EXPLANATION:

IMAGINE the NUMBER is 10x+y

so the SUM of the digits are x+y=9 ----(i)

the DIFFERENCE of the digits are x-y=5 ----(ii)

(i)+(ii)=2x=14

⇨x=7

so, y=2

so the number must be :10×7+2=72



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