Question

seven times a two digit number is equal to four times the obtained by reversing the order of its digits. if the difference of the digits is 3, determine the number

Answer 1

Answer:

Step-by-step explanation:

Answer 2

let the original numb be x+10

Number by reversing its order is 10x+y

According to the question

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

70x+7y=4x+40y

66x-33y=0

2x-y=0

2x=y

The difference of the digits is 3

y-x=3

2x-x=3

x=3

y=6

that number is 36.