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The average of 50 numbers is 38. If two numbers, namely 45 and 55 are discarded, the average of the remaining numbers is ?
Answer & Solution
Correct Answer:
Option
A
According to the question,
Average of 50 numbers is = 38
Sum of 50 numbers is = 38 × 50 = 1900
Two numbers discarded = 45 + 55 = 100
Sum of 48 numbers = 1900 - 100 = 1800
∴ Average = $$\frac{1800}{48}$$ = 37.5
Average of 50 numbers is = 38
Sum of 50 numbers is = 38 × 50 = 1900
Two numbers discarded = 45 + 55 = 100
Sum of 48 numbers = 1900 - 100 = 1800
∴ Average = $$\frac{1800}{48}$$ = 37.5
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