Percentage

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131 In a election, 75% of voters cast their votes, out of which 2% were invalid. The winning candidate received 75% of the valid votes and bagged a total of 9261 votes. The total number of voters in the constituency is

A
14500
B
18900
C
16800
D
24000

132 Sid scored 42 marks in Hindi, 51 marks in Chemistry, 58 marks in Mathematics, 35 marks in Physics and 48 marks in English. The maximum marks, a student can score in each subject, are 60. How much overall percentage did Sid get in this exam?

A
76%
B
82%
C
68%
D
78%

133 In an examination, 49% students failed in English, 36% students failed in Biology, while 15% failed in both. If total number of passed students is 450, then how many students did appear in the examination?

A
1800
B
2000
C
1100
D
1500

134 A two digit number ab is 60% of x. The two-digit number formed by reversing the digit's of ab is 60% more than x. Find x:

A
45
B
54
C
63
D
72

135 In a class, 60% of the students are girls and the rest are boys. There are 30 more girls than boys. If 68% of the students, including 30 boys,pass an examination, the percentage of the girls who do not pass is:

A
15%
B
20%
C
25%
D
30%

136 Tensile strength of a material A is a multiple of amount of materials a, b, c, d used. If the amount of material of a, b, c, d are changed by +30%, -30%, -25%, +25% respectively, what will be the overall change in tensile strength of A?

A
No Change
B
+14.68%
C
–14.68%
D
Depends on the initial amount of a, b, c, d

137 In the final examination, Rishi scored 52% and Kajol scored 64%. The marks obtained by Rishi is 23 less, and that by Kajol is 34 more than the marks obtained by Santosh. The marks obtained by John, who scored 84%, is

A
399
B
439
C
357
D
417

138 In a group of people, 28% of the members are young while the rest are old. If 65% of the members are literates, and 25% of the literates are young, then the percentage of old people among the illiterates is nearest to

A
59
B
62
C
66
D
55

139 In an examination, the maximum possible score is T while the pass mark is 45% of T. A candidate obtains 36 marks, but falls short of the pass mark by 68%. Which one of the following can be correct?

A
T ≤ 200
B
243 ≤ T ≤ 252
C
T ≥ 253
D
201 ≤ T ≤ 242

140 Madhu scores 40% in an examination and after review, even though her score is increased by 50%, she fails by 35 marks. If her post-review score is increased by 20%, she will have 7 marks more than the passing score. The percentage score needed for passing the examination is:

A
75
B
80
C
60
D
70