Math, asked by singhdharvider, 1 month ago

A number consist of two digits whose sum is 9.if the digits are reversed,the new number is 3/8of the first number.find the number.​

Answers

Answered by amitsharma777222999
1

Answer:

unit place digit be x and tenth place digit be y

number 10y+x

Step-by-step explanation:

x+y=9.. ..1)

reversing digit

new number=10x+y

10x+y=3/8 (10y+x)

80x+8y=30y+3x

77x=22y

7x=2y

7x=2(9-x) from 1)

9x=18

x=2

y=9-2=7

number 72

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