πŸ“’ Too many exams? Don’t know which one suits you best? Book Your Free Expert πŸ‘‰ call Now!

  • google app store apple app store
  • βœ–

      Question

      How many Zeros can be formed by multiplying

      10×20×30×40×…………….× 100
      A 22 Correct Answer Incorrect Answer
      B 14 Correct Answer Incorrect Answer
      C 12 Correct Answer Incorrect Answer
      D 10 Correct Answer Incorrect Answer
      E 11 Correct Answer Incorrect Answer

      Solution

      10×20×30×40×…………….× 100 10×1 × 10×2 × 10×3 × 10×4 × …………….× 10×10 γ€–10γ€—^10 × 1×2×3×4×……..× 10 Now, if γ€–10γ€—^1 = 1 zeroes γ€–10γ€—^2 = 2 zeroes γ€–10γ€—^3 = 3 zeroes Then, γ€–10γ€—^10 = 10 zeroes ……………..(i) Now 1×2×3×4×……..× 10 10/5 = 2 zeroes ∴ Required number of Zeroes = 10+2 = 12 zeroes

      Practice Next

      Relevant for Exams:

      ask-question