Question

Out of $14$ numbers, the average of first $10$ terms is $10$ and the average of the remaining $4$ is $24$. Find the average of all the numbers?

• A. $12$
• B. $16$
• C. $14$
• D. $15$

Answer 1

The correct option is C $14$

Average of $10$ terms $=$ $10$

Sum of $10$ terms $=10\times 10=100$

Average of $4$ terms $=$ $24$

Sum of $4$ terms $=$ $96$

Sum of $14$ terms $=$ $100+96=196$

Average of $14$ terms $=\frac{196}{14}=14$ Ans