2 2 9 9 7 7

PERCENTAGE & RATIO PROPORTION SET9

Q.1 A man does not want to change his expenditure for the consumption of sugar. If the prices of sugar increases by 60%, then the man must reduce his consumption by :
A) 35 %
B) 60 %
C) 37 ½ %
D) 40 %
Ans. C
60 / 160 * 100 = 37 1/2b

Q.2 A tank is filled 10% in an hour & 8% of the water is emptied in the next hour. If it is repeated again, Find the percentage of tank filled with water ?
A) 4 %
B) 20 %
C) 17.66 %
D) 19 %
Ans. C
Tank will be filled 10% in first hour .
In next hour 8 % of it = 10 * 8/100 = 8 % of the tank is emptied. Remaining water after the second hour is 9.2%. Again in the third hour 10% tank is filled, it becomes 19.2%.
Again, 8% of it i.e. 19.2 * *8/100
= 1.536 % is emptied in the fourth hour ,
So remaining water is 19.2 – 1.536 = 17.66 %

Q.3 A garrison of 450 men have sufficient provision for 16 weeks .After 6 weeks 50 men more came in. How long the provision will last ?
A) 9
B) 10
C) 11
D) 12
Ans. A
16 weeks – 6 weeks = 10 weeks
For 450 men, 450 * 10
Here it is given,
Thus, 450*10/450+50= 9

Q.4 A can do a piece of work in 24 days. If b is 60% more efficient than A, then the no. of days required by B to do the same piece of work is :
A) 18
B) 15
C) 17
D) 12
Ans. B
1/24*160/100
=1/15
=15

Q.5 Two jars having equal capacity are filled with a mixture of alcohol & water in the proportion of 2:1 & 1:1. These two were emptied into a third jar. What is the proportion of water & alcohol in the third jar ?
A) 5/6 : 7/6
B) 5/3 : 7/3
C) 6/5 : 6/7
D) None of the above
Ans. A
Alcohol : Water = 2:1 & Alcohol : Water = 1:1
2/3 : 1/3 ½ : ½
So, water part= 1/3 + ½ ; Alcohol part = 2/3 +1/2
5/6 : 7/6

Vallie
2024-03-21

Wow, wonderful weblog format! How lengthy have you ever been running a blog for?
you made blogging glance easy. The total look of your site is excellent, as smartly as
the content! You can see similar here ecommerce

Traci
2024-03-24

Wow, amazing blog layout! How lengthy have you been blogging for?

you made blogging glance easy. The total glance of your website is excellent, let
alone the content! You can see similar here dobry sklep