Question
The average of 28 numbers is 50. The average of the
first 16 numbers is 55, while the average of the last 13 numbers is 45. If the 16th number is removed, what will be the average of the remaining 27 numbers, rounded to one decimal place?Solution
ATQ, Sum of 28 numbers = 50 × 28 ⇒ 1400 Sum of first 16 numbers = 55 × 16 ⇒ 880 Sum of last 13 numbers = 13 × 45 ⇒ 585 Let the 16th number be x Sum of 28 numbers = Sum of first 16 numbers + Sum of last 13 numbers - 16th number ⇒ 1400 = 880 + 585 - x ⇒ 1400 = 1465 - x ⇒ x = 1465 - 1400 ⇒ x = 65 Sum of remaining numbers = 1400 - 65 ⇒ 1335 Remaining numbers = 27 Average of remaining numbers = 1335 / 27 ⇒ 49.4 ∴ The average of the remaining numbers (correct to one decimal place) is 49.4
In the following question, select the odd word from the given alternatives.
Select the letter cluster which does not belong to the same group from the given alternatives.
Find the odd one out.
Statement:
Only a few Gold are Silver
No Gold are Diamond
Conclusion:
I. Some Silver are not DiamondÂ
II. Som...
Four words have been given, out of which three are alike in some manner and one is different. Select the odd word.
Find the odd one out from the given alternatives.
The question contains pairs of words that are related to each other in a certain way. Three of the following four word-pairs are alike as these have the...
Select the letter cluster which does not belong to the same group from the given alternatives.Â
Four of the following are alike in a certain way, and one is different. Select the one that is different.
(Note: The words must be considered as m...Three of the following four words are alike in a certain way and one is different. Pick the odd one out .
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