Question
A set contains ten numbers. The average of the first six
numbers is (x - 2), and the average of the last three numbers is (x + 3). The average of the entire set is 'x'. If the 7th number of the set is 29, then find the value of 'x'.Solution
Sum of the numbers of set = 10x Sum of first 6 numbers = 6(x − 2) = 6x − 12 Sum of last 3 numbers = 3(x + 3) = 3x + 9 ATQ, 6x − 12 + 29 + 3x + 9 = 10x 9x + 26 = 10x x = 26
Statements: J ≤ O = A ≤ Q = R, V < U ≤ A = T ≥ S
Conclusion:
I. R ≤ U
II. R > V
III. J ≥ S
In each question below is given a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, t...
If all the vowels are replaced by their succeeding alphabets and consonants are replaced by the preceding alphabet in English alphabetical series in eac...
Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digi...
Statement:
Few M are not N.
All N are O.
Only a few O are P.
Conclusion:
1. All M can be N.
2. Some M are...
What is the function of a compiler?
Find which one of the given words cannot be made from the letters of the given word.
‘ TEMPERATURE ’
...In the question below, two statements (I) and (II) are given. These statements may be either independent causes or may be effects of independent causes...
- A swimmer decided to swim for 8 hours. He swims 8 laps in an hour. He takes a break of 20 minutes after every hour. How many laps does he complete in 8 hou...
Select the option which represents the correct arrangement when the given words are arranged in the order in which they appear in an English dictionary....
