NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 1: Number System - Multiple Choice Questions
Question 3

Question.  3

If 1 is added to the greatest 7-digit number, it equals

(A)

10 thousand

(B)

1 lakh

(C)

10 lakh

(D)

1 crore

Detailed Answer with Explanation:

Step-by-step explanation for a beginner

1. First, understand what a 7-digit number is: it has 7 digits (for example 1,000,000 is the smallest 7-digit number).

2. The greatest (largest) 7-digit number is:

\(9,999,999\)

3. Now add 1 to that number:

\(9,999,999 + 1 = 10,000,000\)

4. Read the result in the Indian number system. The number \(10,000,000\) is called 1 crore:

\(10,000,000 = 1\) crore.

5. So the correct option is (D) 1 crore.

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 1: Number System – Multiple Choice Questions | Detailed Answers