38
Q:

How many litres of pure acid are there in 8 litres of a 20% solution ?

A) 1.4 B) 1.5
C) 1.6 D) 1.7

Answer:   C) 1.6



Explanation:

Quantity of pure acid = 20% of 8 litres = ((20/100)*8) litres = 1.6 litres.

 

Q:

A Bookseller allowed 15% discount on the books sold. Sunil purchased books worth Rs. 1500. How much will he have to pay to Bookseller.

 

A) Rs.1200 B) Rs.1250
C) Rs.1275 D) Rs.1300
 
Answer & Explanation Answer: C) Rs.1275

Explanation:
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1 126
Q:

A, B and C donate 8%, 7% and 9%, of their salaries, respectively to a charitable trust. The salaries of A and B are same and the difference between their donations is Rs. 259. The total donation of A and B is Rs. 1,185 more than that of C. The total donation of A and C is what percentage of the total salaries of A, B and C? (Correct to one decimal place

 

A) 6.2%   B) 5.8%  
C) 6.4%   D) 7.1%  
 
Answer & Explanation Answer: B) 5.8%  

Explanation:
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7 423
Q:

If the selling price of an article is 8% more than the cost price and the discount offered is 10% on the marked price of the article, then what is the ratio of the cost price to the marked price?

 

A) 5 : 6   B) 8 : 9  
C) 3 : 4   D) 4 : 5  
 
Answer & Explanation Answer: A) 5 : 6  

Explanation:
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3 356
Q:

A boy has 120 balls of which some are white and the remaining are black. If the percentage of white balls is 45%, find the number of black balls he has.

 

A) 56 B) 66
C) 64 D) 54
 
Answer & Explanation Answer: B) 66

Explanation:
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2 341
Q:

Srinivas works and earns Rs.14,500 per month, out of which he saves only 20% and spends the remaining amount on other deeds. Find the amount spent

A) ₹ 11,500 B) ₹ 11,400
C) ₹ 11,000 D) ₹ 11,600
 
Answer & Explanation Answer: D) ₹ 11,600

Explanation:
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1 1803
Q:

In an examination, Anita scored 31% marks and failed by 16 marks. Sunita scored 40% marks and obtained 56 marks more than those required to pass. Find the minimum marks required to pass.

 

A) 3116   B) 264  
C) 3944   D) 7100  
 
Answer & Explanation Answer: B) 264  

Explanation:
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8 521
Q:

If the radius of a right circular cylinder is decreased by 10%, and the heightis increased by 20%, then the percentage increase/decreasein its volumeis:

 

A) increase by 2.8% B) decrease by 1.8%
C) increase by 1.8% D) decrease quadrilateral by in 2.8%
 
Answer & Explanation Answer: D) decrease quadrilateral by in 2.8%

Explanation:
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0 444
Q:

A and B spend 60% and 75% of their incomes, respectively. If the savings of A are 20% more than that of B. then by what percentage is the income of A less than the income of B?

 

A) 15 B) 20
C) 10 D) 25
 
Answer & Explanation Answer: D) 25

Explanation:
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3 462