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,

Additional 50 men came,

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

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