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Percentages ( 11 to 15 ):
APTITUDE QUESTIONS (PERCENTAGES):
11. If 35% of a number is 175, then what percent of 175 is that number?
A) 35%
B) 65%
C) 280(5/7)%
D) 120%
E) None of these
View Answer
Answer: option (C)
Explanation:
Let the number be x
Then, 35% of x = 175 (35/100*x)=175 x = ((175*100)/35)=500
Now let y% of 175 = 500
Then, (y/100*175)=500 y = ((500*100)/175)= 2000/7= 280(5/7)%
12. The number which exceeds 16% of it by 42 is:
A) 50
B) 52
C) 58
D) 60
E) None of these
View Answer
Answer: option (A)
Explanation:
Let the number be x. Then, x -16% of x = 42
x – 16/100 x=42 x – (4/25) x=42 (21/25) x=42 x = (42*25)/21=50
13. A number, when 45 is subtracted from it, reduces to its 80 percent. What is four-fifth of that number?
A) 70
B) 90
C) 140
D) 180
E) None of these
View Answer
Answer: option (D)
Explanation:
Let the number be x
Then, x – 45 = (80/100) x x – (80/100) x=45 x = (45*100)/20=225 (4/5)x =180
14. The sum of two numbers is 1490. If 5.5% of one number is equal to 7.5% of the other, then the numbers are:
A) 989, 1501
B) 1011, 1479
C) 1401, 1089
D) 855, 627
E) None of these
View Answer
Answer: option (D)
Explanation:
Let the numbers be x and y. Then, 5.5% of x = 7.5% of y x = (75/55) y= (15/11) y
Now, x + y = 1482 => (15/11) y+y=1482 => (26/11) y=1482 => y = (1482*11)/26=627
∴ One number => y = 627, other number = (15/11) y= 15/11*627=855
15. The difference of the two numbers is 20% of the larger number. What will be the larger number if the smaller number is 20?
A) 25
B) 45
C) 50
D) 80
E) None of these
View Answer
Answer: option (A)
Explanation:
Let the larger number be x
Then, x – 20 = (20/100) x x- (1/5) x = 20 (4/5) x=20 x = (20 * 5/4) = 25