Latest Infosys Aptitude Question SOLUTION: class of 50 students..10 boys got 85%..1/5 total student got 85%....how many girls?

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class of 50 students..10 boys got 85%..1/5 total student got 85%....how many girls?

Asked In Infosys Firdous Imam (10 years ago)

Solved Arjun Singh Read Solution (13)

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Read Solution (13) :

Arjun Singh  (10 years ago)

Question: In a Class of 50 students.how many gairls got more than 85% marks in Mathematics?
Statements:
I. 10 Boys got more than 85% marks in Mathematics.
II. 1/5 of total students got more than 85% marks in Mathematics.

A. I
B. I & II together
C. Either I or II Suffi.. to answer
D. Neither I Nor II.



Ans:B

Is this solution Helpfull? Yes (26) | No (2)  

vijay  (10 years ago)

Info 1: 10 Boys - 85%.
Info 2: 1/5th of total (10 students)- 85%.
Comparing gives - Only those 10B are 85%.
Remaining 40 are girls.

Is this solution Helpfull? Yes (16) | No (2)  

Akanksha Mishra  (10 years ago)

Total students: 50
10 boys got 85%
so remaining student:50-10=40
1/5 total remaining student got 85%=40*1/5=8
i.e.remains:40-8=32 girls
ans:32

Is this solution Helpfull? Yes (6) | No (29)  

murthy  (10 years ago)

answer is surely D. Neither I Nor II.
we can not solve using either of the statements.
In the remaining 40 students are not exactly girls. we can't sure about to say, they may also some boys less than 85%.

Is this solution Helpfull? Yes (6) | No (2)  

Pradeep  (10 years ago)

Given 10 boys got 85% which is equal to 1/5 th of total strength so the remaining are 50-10 = 40 gals

Is this solution Helpfull? Yes (5) | No (6)  

vasoya chirag dhirajlal  (10 years ago)

0 ,10 boys got 85% , now 1/5 of the total i.e 10 got 85% which are boys so there are no girls in student which got 85%.

Is this solution Helpfull? Yes (3) | No   

harshit  (10 years ago)

can not determined...
1/5 of totle student=50*1/5=10
remaining 40 student may be boys or girls

it is sure no girls got 85%

Is this solution Helpfull? Yes (1) | No (1)  

Abhishek kumar  (10 years ago)

guys reads que correctly....the que ask "how many grls got more than 85% marks in mathematics".....
so ANS: B
bcz...
from statement A -- shows that there are only 10 boys who got more than 85%...
and in statement B -- say that 1/5 of 50 =10 student ..and in statement A it already says that there r 10 boys who got more than 85%....which means no girl got more than 85%.......so ans B satisfied.

Is this solution Helpfull? Yes (1) | No   

Pradeep  (10 years ago)

32 girls total 50 students and 10 boys got 85% so remaining 40 students 40/5 =8 got 85% so 40-8 =32 girls

Is this solution Helpfull? Yes | No (4)  

Hariom  (10 years ago)

Ans is 32:
10 boys got 85%, so so remaining 40 students 40/5 =8 got 85% so 40-8 =32 girls

Is this solution Helpfull? Yes | No (9)  

Nitesh Nayak  (10 years ago)

total students= 50
10 boys means i/5 of total students
therefore answer = 40 girls

Is this solution Helpfull? Yes | No   

Paras  (10 years ago)

but here total student why we consider that all 8 are boys there is contradiction boys/girls both aur some probability their

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pooja kommoju  (10 years ago)

Info 1: 10 Boys - 85%.
Info 2: 1/5th of total (10 students)- 85%.
Comparing gives - Only those 10B are 85%.
Remaining 40 are not need to be girls only
in the 40 boys may alo present
so both statements are insufficient

Is this solution Helpfull? Yes | No   

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