Seventy percent chance?

"You can also defuse bombs?"Adaline was extremely surprised.
"No."Jackson shook his head and answered truthfully.
Adaline was stunned when she heard this: "You can't? Then you still want to defuse the bomb for me?"
Jackson had already taken out a pair of scissors from the toolbox and said lightly, "Just guessing. Don't worry, I'm very calm and won't feel any psychological pressure."
"Jackson, get out of here!"Adaline was almost scared to death by him and said angrily.
"You have...