Question
The average age of 20 girls is 54 years. If the age of
two more girls is added the average decreases by half a year. What is the sum of the age of new girls?Solution
Total age of 20 girls = 20 × 54 = 1080 years  If the age of two more girls is added the average decreases by half a year,  ∴ Total age of 22 girls = 53.5 × 22 = 1177  Now, sum of the age of new girls = 1177 – 1080 = 97 years
Statements:All gems are stones.
Some stones are diamonds.
Some diamonds are jewelry.
Some jewelry are pearls.
Conclusions:I....
Statements: Â Â some record are folder.
                             No folder is a data.
     ...
Statements:
Only cumin are coriander.
Some cumin are spices.
Some spices are turmeric.
Conclusions:
I. Some turmeric ...
Statement:Â
Each A is Z.
Only a few Z are B.
Some B are Y.
Conclusion:
I. All Z are A.
II. All A are not ...
Statements: Some printers are monitors.
All monitors are modems.
Some modems are keyboards.
Co...
Statements:
Only BB are LL.
Only a few BB are DD.
No BB is AA.
A few AA are OO.
Conclusions:
I. A...
Select the letter-cluster from among the given option that can replace the question mark (?) in the following series.
PRESIDENT, RESIDENT, RESIDE...
Statements:
Only Shorts are Skirts.
Few Shorts are Shirts.
All Shirts are Pants.
Conclusions:
I. Some Shorts are Pant...
In the question below there are some statements followed by some conclusions. You have to take the three given statements to be true even if they seem ...
Statements:
coins - mines.
cakes - mines.
hats - coins.
mines + ropes.
Conclusions:
I. ropes + hats
II....
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