Question

a two digit number is equal to seven times the sum of its digits.if the digits are reversed the new no formed is 36 less than the original number. what is the number

Answer 1

Answer:

84

Step-by-step explanation:

10x+y = 7×(x+y)

3x = 6y

x =2y

10y+x = 10x+y -36

10y + 2y = 20y + y - 36

9y = 36

y = 4

x = 2×4 = 8

Number = 84