Maths Number System
How many factors of 2⁵ × 3⁶ × 5² are perfect squares?
2⁵ × 3⁶ × 5² के कितने गुणनखंड पूर्ण वर्ग हैं?
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A
(a) 6
B
(b) 4
C
(c) 7
D
(d) 8
Correct Answer: Option A
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Explanation / व्याख्या:
Perfect square factors use even powers: 2⁽⁰⸴²⸴⁴⁾×3⁽⁰⸴²⸴⁴⸴⁶⁾×5⁽⁰⸴²⁾ = 3×4×2=24.
1080=2³×3³×5¹। पूर्ण वर्ग: 2×2×1=4।
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