First slide

Means - A.M/G.M/H.M

Question

Sum of 10 AMs between 20 and 30

Moderate

A

240
B

250
C

260
D

280

Solution

$\frac{n}{2} (a + b) = \frac{10}{2} (20 + 30) = 5 \times 50 = 250$

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