If everyone's 10 questions are correct, you can get: 10×20=200 points.

For each wrong question 12, 20 points will be deducted, and one less * * * 20+ 12 = 32 points.

A gets: (208+64)÷2= 136.

Missing: 200- 136=64 points.

A Wrong: 64×32=2 questions

Yes: 10-2=8 questions.

B: 136-64=72 points.

Missing: 200-72= 128 points.

B Wrong: 128÷32=4 questions

Right: 10-4=6 questions.