Question
The average age of (x + 7) interns is 19 years. After
adding a 41-year-old mentor, the average rises to 20 years. Find x% of 500.Solution
ATQ,
Total age of interns = 19(x + 7)
According to question,
19(x + 7) + 41 = 20(x + 7 + 1)
19x + 133 + 41 = 20x + 160
19x + 174 = 20x + 160
20x – 19x = 174 – 160
x = 14
So, 14% of 500 = 70
In the questions given below, there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be...
Conclusions:
I. 20% Laptops can be Computers.
II. 40% Drive are not Laptops.
Statements:
In the following questions below are given some statements followed by some conclusions based on those statements. Taking the given statements to be t...
- Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance wi...
- In the question below, some statements are given followed by two conclusions I and II. You have to take the given statements to be true even if they seem t...
Statement:
Some A are B
Few D are B
Some C are D
Conclusion:
I. Some A are C
II. Some D are A is not a p...
Statements:Some combs are boxes.
All boxes are mirrors.
Conclusions:I. Some boxes are combs.Â
II. Some mirrors are combs.
Statements: Â
Only Delhi are Mumbai
Some Delhi are Kolkata
Only Kolkata are Chennai
Conclusion:
I. Some Mumbai a...
Statements:
All threads are wools.
Some wools are ropes.
All ropes are chains.
Conclusions:
I. Some wools are ch...
Statements : Â Â Â Â Â Â Â All one are two.
                               All three are two.
   ...
