search
arrow-left Previous
Next arrow-right
Q: Which two number should be interchanged to make the given equation correct? 8 x 4 – 3 + 57 ÷ 9 = 42
  • A. 8 and 4
  • B. 57 and 9
  • C. 3 and 9
  • D. 42 and 57
Correct Answer: Option C - 8 × 4 – 3 + 57 ÷ 9 = 42 On interchanging 3 and 9 from given equation 8 × 4 – 9 + 57 ÷ 3 = 42 32 – 9 + 19 = 42 32 + 10 = 42 42 = 42
C. 8 × 4 – 3 + 57 ÷ 9 = 42 On interchanging 3 and 9 from given equation 8 × 4 – 9 + 57 ÷ 3 = 42 32 – 9 + 19 = 42 32 + 10 = 42 42 = 42

Explanations:

8 × 4 – 3 + 57 ÷ 9 = 42 On interchanging 3 and 9 from given equation 8 × 4 – 9 + 57 ÷ 3 = 42 32 – 9 + 19 = 42 32 + 10 = 42 42 = 42