ഈ സംഖ്യകളിൽ ഏത് സംഖ്യയുടെ വർഗ്ഗമൂലം അവിഭാജ്യമാണ്?
A81
B50
C64
D49
Answer & Solution
Correct answer: B. 50
50 ഒരു പൂർണ്ണ ചതുരമല്ല, അതേസമയം 49, 64, 81 എന്നിവ 7, 8, 9 എന്നിവയുടെ ചതുരങ്ങളാണ്.
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