MyStudyPals.com MyStudyPals.com
  • Login
  • Feed

Resources

  • 📰
    Latest School News
  • 📚
    Scholarships
  • 🎓
    JAMB Syllabus
  • 📝
    Jamb Brochure

Information

  • 🔗
    Contact US
  • 🔗
    Privacy Policy
  • 🔗
    Terms and Conditions
  • 🔗
    About US

If \(1011_2\) + \(X_7\) = \(25_{10}\), solve for X.

  • 📑 Past Questions
  • ⌛ Take CBT exam
  • 📟 Referral
  • 🎫 Support
  • 📢 Earnings
Mathematics JAMB 1998

If \(1011_2\) + \(X_7\) = \(25_{10}\), solve for X.

  • 207 checkmark
  • \(14_7\)
  • \(20_7\)
  • \(24_7\)

The correct answer is: A

Explanation

\(1011_2 + X_7 = 25_{10} = 1011_2 = 1 \times 2^3 + 0 \times 2^2 + 1 \times 2^1 + 1 \times 2^0\)

= 8 + 0 + 2 + 1

= \(11_{10}\)

\(X_7 = 25_{10} - 11_{10}\)

= \(14_{10}\)

\(\begin{array}{c|c}
7 & 14 \\ 7 & 2 R 0 \\ & 0 R 2
\end{array}\)

X = \(20_7\)

Previous Question Next Question

Leave A Comment

© 2025 MyStudyPals.com