Question

y The difference between a 2-digit number
obtained by inter charging its digit 27.
what is difference between the sum and
the difference of the digits of the number
if the ratio between the digit of the number
is 1:2?​

Answer 1

Answer:

The difference between a two digit number and the number obtained by interchanging the digits is 36 What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1/2

Answer 2

Given :- The difference between a 2-digit number

obtained by inter charging its digit 27. what is difference between the sum and the difference of the digits of the number if the ratio between the digit of the number

is 1:2 ?

Solution :-

Let us assume that, the unit digit is x and ten's digit is 2x .

so,

→ Required two digit number = 10*2x + x = 20x + x = 21x

and,

→ Interchanging two digit number = 10 * x + 2x = 12x .

A/q,

→ 21x - 12x = 27

→ 9x = 27

→ x = 3

then,

→ Required two digit number = 21x = 21 * 3 = 63 .

therefore,

→ Required difference = (6 + 3) - (6 - 3) = 9 - 3 = 6 (Ans.)

Learn more :-

let a and b positive integers such that 90 less than a+b less than 99 and 0.9 less than a/b less than 0.91. Find ab/46

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