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The average age of 6 students is 11 years. If two more students of ages 14 and 16 years join. What will their now average age ?

A11

B12

C13

D14

Answer:

B. 12

Read Explanation:

Total age before new students were added = 11 × 6 = 66 Total age after new students were added = 66 + 14 + 16 = 96 new avg =96/8 ⇒ x = 12


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