A square of side 10 cm has a smaller square (of side 4 cm) removed from one side.
A square of side 10 cm has a smaller square (of side 4 cm) removed from one side. What is the ratio of the remaining area to the original?
10 सेमी भुजा वाले एक वर्ग की एक भुजा से एक छोटा वर्ग (भुजा 4सेमी) हटा दिया जाता है। शेष क्षेत्रफल का मूल क्षेत्रफल का मूल क्षेत्रफल से अनुपात क्या हैं?
Detailed Solution & Logic
Correct Answer:
21: 25
Solution (Simple):
Original square area = $10^2 = 100 \text{ cm}^2$
Removed square area = $4^2 = 16 \text{ cm}^2$
Remaining area = $100 - 16 = 84 \text{ cm}^2$
Ratio (remaining : original) = $84 : 100 = 21 : 25$
Final Answer:
👉 21 : 25
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