each pupil had to answer 50 questions. 5 points were given for each correct answer and 4 points were deducted for each incorrect answer. Jack answered all 50 questions and he scored 97. How many questions did he answer correctly?

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

could you provide figure.

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

ok so what's the question?

step-by-step explanation: