Math, asked by ojasanand111, 9 months ago

the sum of the digit of two digit numbers is 7. if the number formed by reserving the digit is less than the original number find the original number​

Answers

Answered by nidhirandhawa7
1

Answer:

sum of three consecutive odd number

x+(x+2)+(x+4)=51

3x+6=51

3x=45

x=15

the numbers are 15,17,19

Step-by-step explanation:

Answers

Let the units place be x

then the tens digit be 7 - x

number formed by these digits = 10 x t's digit+u's digit

=> 10(7-x)+x

70 x -10 x +x

70 x -9x

when the digits are interchanged than,

t's digit= x

u's digit = 7-x

the new no. formed = 10x + 7-x

= 9 x +7

given that the no. exceeds by 27

new no. - given no.

9x +7 - (70-9x)=27

9 x + 7 - 70 + 9x =27

18x -63= 27

18 x = 63+27

18 x= 90

x = 90/18

=5

the no. = 70- 9x

=> 70-45

=> 25 ans

verify : 2+5 = 7

Step-by-step explanation:

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