Question

I am a number, tell my identity ,take me five times over ,and add sixty ,to reach a double century ,you still need forty

Answer 1

let x be the no then as per the question 5x+60=200-40 .so the no is 5x =160-60 so 5x=100 and x=20. HOPE THIS HELPED

Answer 2

unknown number - x
5x+60+40=200
5x+100=200
5x=200-100
5x=100
x=100/5=20
unknown number is 20