Saturday 14 January 2017

QUANTITATIVE APTITUDE - FOR UPCOMING EXAMINATION

DATA INTERPRETATION 



Direction (Q. 1-5): Total number of candidates applied for SSC exam from six different cities together is 6.5 lakh. Following pie chart shows the percentage distribution of total candidates among these cities and the table shows the percentage of girls applied for SSC from these cities:-



1). What is the total number of boys applied from city B in SSC exam ?
a)    64350
b)    65680
c)    67860
d)    68760
e)    69660
2). What is the difference between total number of boys and total number of girls applied from city A ?
a)    32400
b)    33800
c)    34200
d)    35500
e)    36300
3). What is the ratio between number of girls applied from city B and city C ?
a)    3 : 5
b)    4 : 7
c)    5 : 9
d)    7 : 10
e)    8 : 13
4). Number of boys applied from city F is approximately what percent of total number of candidate applied from all six cities together ?
a)    8.64%
b)    10.92%
c)    11.48%
d)    12.64%
e)    13.5%
5). What is the total number of girls applied from all six cities together ?
a)    290355
b)    292165
c)    293445
d)    294575
e)    295050


Direction (Q. 6-10): In the given table the percentage of marks scored by five students in different subjects is shown. Answer following questions based on this table :-


6). What are the total marks scored by student 'C' in all six subjects?
a)    421
b)    423.5
c)    425
d)    426.5
e)    429
7). What is the average marks scored in subject 'Q' by all students ?
a)    64.2
b)    66.5
c)    68.4
d)    69.8
e)    71.6
8). Marks scored by student 'C' in subject 'T' is approximately what percentage of mark scored by student 'D' in subject 'P'?
a)    92.5%
b)    87.5%
c)    82.5%
d)    77.5%
e)    72.5%
9). Marks scored by student 'A' in subject 'U' is approximately how much percentage more/less than marks scored by student 'B' in subject 'Q' ?
a)    35%
b)    45%
c)    55%
d)    65%
e)    75%
10). What is the aggregate percentage of student 'E' considering all six subjects ?
a)    47.4%
b)    50.3%
c)    54.5%
d)    57.2%
e)    59%


SOLUTION

Solution:
1).C)  Boys = 650000 × (18/100) × (58/100) = 67860


2). B)  Diff = 650000 × (20/100) × [(63-37)]/100
= 65×20×26 = 33800


3). D) Ratio =[ 650000 × (18/100) × (42/100)] / [650000 × (24/100) × (45/100)]
= (18×42)/(24×45) = 7/10


4). B)  FB = 650000× (21/100) × (52/100) = 70980
Req % = (70980/650000) × 100 = 10.92%


5). A)  Total Girls
 = 650000 /(100 × 100)
× [(20 ×37) + (18 ×42) + (24 ×45) + (9 ×51) + (8 ×53) + (21 ×48)]
= 65× (740+756+1080+459+424+1008) = 65×4467
= 290355


6). D)  150×.65 + 120×.75 + 50×.7 + 50×.54 + 63 + 200×.57
=  97.5 + 90 + 35 + 27 + 63 + 114 = 426.5


7). C)  Avg. = [120/(100 × 5)] (65 + 50 +75 + 55+ 40) = (1.2/5) ×285
= 1.2 × 57 = 68.4

8). B)  CT = 100× (63/100) = 63,  Dp = 150 × (48/100) = 72


9). D)  Av = 200×(49.5/ 100) = 99,  BQ = 120×(50/100) = 72
Req. % = [(99 – 60)/60] × 100 = (3900/60) = 65%


10). B)  E Total = 150×.56 + 120×.4 + 50×.48 + 50×.46 + 53 + 200×.525
= 84 + 48 + 24 + 23 + 53 + 105 = 337
Total marks = 150 + 120 +50 +50 + 100 + 200 = 670

Req. % =(337/670) × 100 = 50.298 = 50.3 %

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