📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store
  • ✖

      Question

      If (64)2 – (36)2 = 20Z, the

      value of z is 
      A 70 Correct Answer Incorrect Answer
      B 120 Correct Answer Incorrect Answer
      C 180 Correct Answer Incorrect Answer
      D None of these Correct Answer Incorrect Answer

      Solution

      ATQ ⇒  (64)2 - (36)2 = 20Z ⇒ 4096 - 1296 = 20Z ⇒ 20Z = 2800 ⇒ Z = 140

      Practice Next
      ask-question