Lesson eLearning

A Chola merchant ship carried 30,000 bronze coins as tribute. If each coin weighs 3 grams, what is the total weight of the tribute in kilograms?

hard 1 mark Class 7 · History · New Kings and Kingdoms
Answer
90 kg

The correct answer is 90 kg — Marks: 1

Step-by-step solution

  1. Total number of coins = 30,000.
  2. Weight of each coin = 3 grams.
  3. Total weight in grams = 30,000 × 3 = 90,000 grams.
  4. Convert grams to kilograms: 90,000 g ÷ 1,000 = 90 kg.
  5. Thus, the tribute weighs 90 kg.
  6. Marks: 1
Common mistake: Dividing by 1,000 instead of multiplying, or misplacing decimal point

Concept tested: Unit conversion in historical context

Published · How this solution was prepared and checked

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