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Sugar costs 36 per kg. The cost of 3 kg is:
A108
B39
C72
D120
Answer & Solution
Correct answer: A. 108
1. Cost rises in the same ratio as weight.
2. 3 times 36 is 108.
3. Weight and cost are in direct proportion.
_Source: NCERT Class 8 Mathematics, Chapter 13, Direct and Inverse Proportions._
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