3
Q:

P, Q and R secured 45%, 50% and 60% marks respectively in Biology. M’s marks in Biology is 12.5 more than P’s marks and 4 less than R’s marks. Find out the individual marks of four students.

 

A. For the students, total marks obtained for Biology is 311.5.
B. Total of M’s and P’s marks in Biology is 147.5.
C. R has obtained 84 marks.

A) Only C B) Only A & B
C) All are required D) None of the statements is required

Answer:   D) None of the statements is required



Explanation:

From the given data,
(60 - 45)% = 12.5 + 4
15% = 16.5
=> 100% = ?
100% = 16.5 x 100/15 = 110

Hence, P = 45% of 110 = 45x110/100 = 49.5
Q = 50% of 110 = 55
R = 60% of 110 = 60 x 110/100 = 66
M = 12.5 + 49.5 = 62 or 66 - 4 = 62

 

Hence, no statement is required to answer.

Q:

An article is sold for ₹ 547.40 after successive discounts of 30% and 15%. What is the market price of the article?

 

A) ₹940 B) ₹900
C) ₹920 D) ₹960
 
Answer & Explanation Answer: C) ₹920

Explanation:
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0 106
Q:

The price of sugar is increased by 17%. A person wants to increase his expenditure by 7% only. By what percentage, correct to one decimal place, should he reduce his consumption?

 

A) 8.3% B) 8.1%
C) 8.7% D) 8.5%
 
Answer & Explanation Answer: D) 8.5%

Explanation:
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0 68
Q:

An article is sold for ₹612 after successive discounts of 25% and x%. If the marked price of the article is ₹960, what is the value of x?

 

A) 10 B) 15
C) 12 D) 14
 
Answer & Explanation Answer: B) 15

Explanation:
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0 874
Q:

Anu fixes the selling price of an article at 25% above its cost of production. If the cost of production goes up by 20% and she raises the selling price by 10%, then her percentage profit is (correct to one decimal place):

 

A) 16.4% B) 14.6%
C) 13.8% D) 15.2%
 
Answer & Explanation Answer: B) 14.6%

Explanation:
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2 307
Q:

Anu fixes the selling price of an article at 25% above its cost of production. If the cost of production goes up by 20% and she raises the selling price by 10%, then her percentage profit is (correct to one decimal place):

 

A) 16.4% B) 14.6%
C) 13.8% D) 15.2%
 
Answer & Explanation Answer: B) 14.6%

Explanation:
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0 269
Q:

If the selling price of 40 articles is equal to the cost price of 50 articles, then the percentage loss or gain is:

 

A) 20% loss B) 25% loss
C) 20% gain D) 25% gain
 
Answer & Explanation Answer: D) 25% gain

Explanation:
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4 392
Q:

Table shows the percentage distribution of the expenditure incurred on different items for publishing a book.

Percentage_Distribution1630062620.png image

Expenditure on Royalty is less than that on Printing by:

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

Explanation:
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0 194
Q:

The difference between compound interest and simple interest on ₹x at 15% per annum for 2 years is ₹9. What is the value of x?

 

A) 600 B) 400
C) 450 D) 500
 
Answer & Explanation Answer: B) 400

Explanation:
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3 2958