Question

tell me 3,4and5 I'll mark as brainliest

Answer 1

q4
let one digit of the number be x
other digit=5-x
the number =10*x+5-x
=10x+5-x
=9x+5
other number =10*(5-x) +x
=50-9x
according to question
9x+5+9=50-9x
9x+14=50-9x
18x=36
x=2
number =9x-5
=18+5
=23
q3
in picture