13
Q:

Of the following, which is greater than ½ ?

Indicate ALL such fractions.

A) 2/5 B) 4/7
C) 4/9 D) 5/11

Answer:   B) 4/7



Explanation:

One way to deal with fractions is to convert them all to decimals. 

In this case all you would need to do is to see which is greater than 0.5.

Otherwise to see which is greater than ½, double the numerator and see if the result is greater than the denominator. In B doubling the numerator gives us 8, which is bigger than 7. 

Subject: Average
Exam Prep: GRE
Q:

The average revenues of 9 consecutive years of a company is Rs 76 lakhs. If the average of first 5 years is Rs 71 lakhs and that of last 5 years is Rs 83 lakhs, find the revenue for the 5th year.

A) Rs 88 lakhs B) Rs 84 lakhs
C) Rs 86 lakhs D) Rs 82 lakhs
 
Answer & Explanation Answer: C) Rs 86 lakhs

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Exam Prep: Bank Exams , CAT

2 1767
Q:

The average weight of P, Q and R is 47 kg. If the average weight of P and Q be 32.5 kg and that of Q and R be 48.5 kg, then what is the weight of Q (in kgs)?

A) 25 B) 29
C) 21 D) 33
 
Answer & Explanation Answer: C) 21

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Exam Prep: Bank Exams

3 1076
Q:

A factory buys 7 machines. 2 Machine A, 2 Machine B and rest Machine C. Prices of the machines are Rs 95000, Rs 75000 and Rs 43000 respectively. Calculate the average cost of these machines?

A) 71000 B) 67000
C) 75000 D) 65500
 
Answer & Explanation Answer: B) 67000

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Exam Prep: Bank Exams

2 1405
Q:

What is the average of first 19 odd numbers?

A) 9.5 B) 15.5
C) 19 D) 38
 
Answer & Explanation Answer: C) 19

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Exam Prep: Bank Exams

5 1926
Q:

The average marks of 40 students in an examination was 34. It was later found that the marks of one student had been wrongly entered as 62 instead of 26. what is the correct average?

A) 33.1 B) 33.3
C) 33.5 D)  33.7
 
Answer & Explanation Answer: A) 33.1

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Exam Prep: Bank Exams

4 1670
Q:

In a class of 39 students there are 26 girls. The average weight of these girls is 42 Kgs and average weight of the full class is 48 kgs. What is the average weight (in kgs) of the boys of the class?

A) 54 B) 66
C) 60 D) 62
 
Answer & Explanation Answer: C) 60

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Exam Prep: Bank Exams

3 1411
Q:

A batsman makes a score of 95 runs in the 13th match and thus increases his average runs per match by 4. What is his average after the 13th match?

A) 47 B) 43
C) 45 D) 49
 
Answer & Explanation Answer: A) 47

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Exam Prep: Bank Exams

3 1421
Q:

In a class of 100 students, the average weight is 30 kg. If the average weight of the girls is 24 kg and that of the boys is 32 kg, then what is the number of girls in the class?

A) 25 B) 26
C) 27 D) 28
 
Answer & Explanation Answer: A) 25

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Exam Prep: Bank Exams

8 1769