Question

No. Of two digit no which become 75% itself when digits are reversed

Answer 1

10x+y be the number

10x+y + 75% of (10x+y) = 10y+x

10x+y + 3/4(10x+y) = 10y+x

40x+4y +30x+3y = 40y+4x

70x+7y = 40y+4x

70x - 4x = 40y - 7y

66x =33y

x = 2y

1:2 = x:y

Number be 10(1) + 2=10+2=12