Question
The average of 25 numbers is 39.4. The average of the
first 12 numbers is 36.5, and the average of the last 12 numbers is 40.5. Determine the value of the 13th number.Solution
Sum of 25 numbers = 25 X 39.4 = 985 Sum of first 12 numbers = 12 X 36.5 = 438 Sum of last 12 numbers = 12 X 40.5 = 486 Therefore, required number = 985 - 438 - 486 = 61
Induce
Find out the appropriate word.
Which of the following is an antonym of "vague"?
Choose the correct synonym of the word highlighted in each sentence from the alternatives given below it:
A dozen gentlemen were engage...
Chintzy
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Which of the following is a synonym for "plethora"?
The two parties signed a lengthy _________.
It took a lot of time in making both of them come to a comfortable mutual ___________.
Not man...
Select the most appropriate synonym of the given word.
DETAIN
Identify the word that is misspelt.
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