Question

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Answer (Detailed Solution Below)

Option 3 : 81 / 81

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Detailed Solution

सही उत्तर 81 / 81 है।

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Question:

Find the missing number in the grid. Row 1: 4, 9, 25. Row 2: 9, 16, 49. Row 3: 16, 25, ?. / ग्रिड में लुप्त संख्या ज्ञात कीजिए। पंक्ति 1: 4, 9, 25। पंक्ति 2: 9, 16, 49। पंक्ति 3: 16, 25, ?।

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64 / 64
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72 / 72
3.
81 / 81
4.
100 / 100

Correct Answer: 81 / 81

In each row the third number is the square of the sum of the square roots of the first two: (2 + 3)² = 25, (3 + 4)² = 49, so (4 + 5)² = 81. / प्रत्येक पंक्ति में तीसरी संख्या प्रथम दो के वर्गमूलों के योग का वर्ग है: (2 + 3)² = 25, (3 + 4)² = 49, अतः (4 + 5)² = 81।

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