Question

Seven times a two digit number is equal to four times the number obtained by reversing the order of its digits. If he difference of the digits is 3, determine thenumber.

Answer 1

Answer:

Step-by-step explanation:

let numbers be x at ones place and y at tens place so

10y+x is that digit

now reversed digit is 10x+y

according to question

7 (10y+x)=4(10x+y)

x=2y (i)

now

given

x-y=3

from eq. i 2y=x

2y-y=3

y=3

so

x=63

required original no. is 36 and reversed digit is 63

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