Question

4)The sum of the digits of a two-digit number is 17 and the difference between
the digits is 1. What is the two digit number?​

Answer 1

Answer:

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Answer 2

• first digit = 9
• second digit = 8

Step-by-step explanation:

Given :-

• The sum of the digits of a two-digit number is 17 .
• The difference between
• the digits is 1 .

To find :-

• the two digit number .

Solution :-

• Let first digit number = x
• Let second digit number = y

A.T.Q.

The sum of the digits of two digit number = 17 .

Therefore,

x + y = 17 ............eq.(1)

Also,

Difference between the digits = 1

Therefore,

x – y = 1 ............eq.(2)

Add eq.(1) and eq.(2) we get --

x + y = 17

x – y = 1

2x = 18

x = 18/2

x = 9

Put the value of x = 9 in eq.(1) we get --

x + y = 17

9 + y = 17

y = 17 – 9

y = 8

So, the first number = 9

Second number = 8