NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 1: Number System - Problems and Solutions
Question 153

Question. 153

Of the following numbers which is the greatest? Which is the smallest? 38051425, 30040700, 67205602

Answer:

Greatest = 67205602, Smallest = 30040700

Detailed Answer with Explanation:

Idea: Compare digits from the left (highest place value) — crores, then ten-lakhs, and so on.

Step 1: Look at the crore (10,000,000) place.

  • 38051425 → crore digit = 3
  • 30040700 → crore digit = 3
  • 67205602 → crore digit = 6

6 > 3, so 67205602 is the greatest.

Step 2: Find the smallest among the remaining two (their crore digits are equal).

Compare the next place: ten-lakh (1,000,000) place.

  • 38051425 → ten-lakh digit = 8
  • 30040700 → ten-lakh digit = 0

0 < 8, so 30040700 is the smallest.

Conclusion: Greatest = 67205602; Smallest = 30040700.

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