$16$ आनी $25$ हांचेमदीं सरासरी प्रमाणांत सोदून काडात.
A$18$
B$20$
C$22$
D$24$
Answer & Solution
Correct answer: B. $20$
सरासरी प्रमाणीक $= \sqrt{a \times b} = \sqrt{16 \times 25} = \sqrt{400} = 20$. पर्याय A (18) हें अंकगणितीय सरासरी $(16+25)/2 \approx 20.5$ सकयल वाटकुळें — बंद, पूण मागिल्लें भूमितीय सरासरी न्हय.
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