Tuesday, 17 March 2015

Speed test for Quantitative Aptitude.



Question 1-4
Solve these questions :

The following table gives the percentage of marks obtained by seven
students in six , different subjects in an examination. Study the table and
answer the questions based on it. The numbers in the brackets give the
maximum marks in each subject.





1.What was the aggregate of marks obtained by Sajal in all the six subjects?
(a) 409 (b) 419 (c) 429 (d) 439 (e) 449
2. What is the overall percentage of Thrun?
(a) 52.5% (b) 55% (c) 60% (d) 63% (e) 64.5%
3. What are the average marks obtained by all the seven students in Physics?
(rounded off to two digits after decimal)
(a) 77.26 (b) 89.14 (c) 91.37 (d) 96.11 (e) 103.21
4. The number of students who obtained 60% and above marks in all the
subjects is :
(a)  1 (b) 2 (c) 3 (d) None (e) None of these



Questions 1-6



1. Combining the states P and Q, together in 1998, what is the percentage
of the candidates qualified to that of the canditates appeared?
(8) 10.87% (b) 11.49% (c) 12.35% (d) 12.54% (e) 13.50%
2.The percentage of the total number of qualified candidates to the total
number appeared candidates among all the five states in 1999 is :
(a) 11.49%(b) 11.84% (c)- 12.21% (d) 12.57%(e) 12.7a1
3. What is the percentage of candidates qualified from State N for all the
years together, over the candidates appeared from State N during all the years
together?
(a) 12.36% (b) 12.16% (c) 11.47% (d) 11.15%(e)None of these
4. What is the average of candidates who appeared from State Q during the
given yeas?
(8) 8700 (b) 8760 (c) 8810 (d) 8920 (e) 8990
5 . In which of the given years the number of candidates appeared from
State P has maximum percentage of qualified candidates?
(8) 1997 (b) 1998 (c) 1999 (d) 2000 (e) 2001
6. Total number of candidates qualified from all the states together in 1997
is approximately what percentage of the total number of candidates qualified
from all the states together in 1998 ?
(a) 72% (b) 77% (c) 80% (d) 83% (e) 86%


Done in 10-15 Minutes : Excellent
Done in 20 Minutes: Word hard



Answers:

Questions 1-4
1.. (e) : Aggregate marks obtained by Sajal
= [(90% of 150) + (60% of 130) + (70% of 120) + (70% of 100) +
(90% of 60) + (70% of 40)] = 135 + 78 + 84 + 70 + 54 + 28 = 449.

2. (c) : Aggregate marks obtained by Tarun .
= [(65% of 150) + (35% of 130) + (50% of 120) + (77% of 100) + (80% of
60) + (80% of 40)] = 97.5 + 45.5 + 60 + 77 + 48 + 32 = 360.
Total maximum marks (of all the six subjects)
= (150 + 130 + 120 + 100 + 60 + 40) = 600.
Overall percentage of Tarun = 360 x 100 % = 60%.
. 600

3. (b) : Average marks obtained in Physics by all the seven students
= 1 [(90% of 120) + (80% of 120) + (70% of 120) + (80% of 120)
7
+ (85% of 120) + (65% of 120) + (50% of 120)]
= 1 [(90 + 80 + 70 +80 + 85 + 65 + 50)% of 120]
7
=1 [520% of 120] = 89.14.
7
4. (b) : From the table it is clear that Sajal and Rohit have 60% or more
Marks

Questions 1-6
Sol.1.(c)Required Percentage=(1020+1240) *100%=(2260*100)/18300%
(8800+9500)
=12.35%
Required Percentage= (850+920+890+980+1350) *100%
(7400+8450+7800+8700+9800)
=(4990*100)/42150%
=11.84%
(e) : Required Percentage=(84-
+1050+920+980+1020)/(7500+9200+8450+9200+8800)*100%
=(4810*100)/43150* %
=11.15%
4. (e) Required average =(8100+9500+8700+9700+8950)/5
=44950/5
=8990
5. (e) : The percentages of candidates qualified to candidates appeared from
State P during different years are:
For 1997= 780 * 100% =12.19%
6400
for 1998 = 1020*100 %=11.59%
8800
For 1999 = 890*100 %=11.41%;
7800
For 2000 = 1010* 100 % = 11.54%.
8 750
For 2001=1250*100 %= 12.82%
9750
:. Maximum percentage is for the year 2001.
6. (c) : Required Percentage =( 720 + 840 + 780 + 950 + 870) . x 100
980+1050+1020+1240+940
=80%

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