NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 1: Number System - True or False Questions
Question 46

Question. 46

\(\text{LXXIV}=74\).

Answer:

true

Detailed Answer with Explanation:

Step 1: Know the symbols.

\(L = 50\)

\(X = 10\)

\(V = 5\)

\(I = 1\)

Step 2: Write the numeral in parts.

\(\text{LXXIV} = L + X + X + IV\)

Step 3: Handle \(IV\) (a smaller symbol before a bigger one means subtract).

\(IV = 5 - 1 = 4\)

Step 4: Find each part.

\(L = 50\)

\(XX = 10 + 10 = 20\)

\(IV = 4\)

Step 5: Add the parts.

\(50 + 20 = 70\)

\(70 + 4 = 74\)

Conclusion: \(\text{LXXIV} = 74\), so the statement is true.

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 1: Number System – True or False Questions | Detailed Answers