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Q:

If m ­ n = 2 , mn = 15 , (m , n > 0) then the value of m2-n2m3-n3

A) 1856 B) 1658
C) 1586 D) 1568
 
Answer & Explanation Answer: D) 1568

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

2 2167
Q:

Nikhil is father in law of Tara. Tara is the wife of Rahul. How is Rahul's brother related to Nikhil?

A) Brother B) Father
C) Son D) Father-in-law
 
Answer & Explanation Answer: C) Son

Explanation:
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Filed Under: Blood Relations
Exam Prep: Bank Exams

4 2167
Q:

What is the function of reverse transcriptase?

A) synthesis of RNA from protein B) synthesis of DNA from an RNA template
C) synthesis of protein from DNA D) synthesis of DNA from protein
 
Answer & Explanation Answer: B) synthesis of DNA from an RNA template

Explanation:

A reverse transcriptase (RT) is an enzyme used to generate complementary DNA (cDNA) from an RNA template by a process called Reverse Transcription.

In brief its function is that copies all or part of the virus RNA (retroviruses are RNA-only) as DNA which can then be integrated into the DNA of the host organism.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank PO

2 2167
Q:

50% of a = b, then b% of 40 is the same as _________ of a.

A) 0.25 B) 0.16
C) 2 D) 0.2
 
Answer & Explanation Answer: D) 0.2

Explanation:
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Filed Under: Percentage
Exam Prep: Bank Exams

4 2167
Q:

When a discount of 20% is given on a sweater, the profit is 28%. If the discount is 14%, then the profit is

A) 42 percent B) 46.4 percent
C) 33.2 percent D) 37.6 percent
 
Answer & Explanation Answer: D) 37.6 percent

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

3 2167
Q:

A cistern has one inlet, L and one inlet, M. L takes 5 hours to fill the empty tank, when M is not open and M takes 8 hours to empty the full tank, if the tank is two fifth full, how much time will it take to fill the tank completely when both L and M are opened simultaneously? (in hours)

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

Explanation:
If the tank is 2/5th full, then remaining empty tank will be = 1-2/5=3/5th
L and M can fill the empty tank in = (5*8)/(8-5)=40/3 hours

Then 3/5 th tank fill in =40/3 * 3/5= 8 hours

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Filed Under: Pipes and Cistern
Exam Prep: Bank Exams

2 2166
Q:

When hot water is placed into an empty water bottle, the bottle keeps its shape and does not soften. What type of plastic is the water bottle made from?

A) Thermoplastic B) PVC
C) Polyurethane D) Thermosetting
 
Answer & Explanation Answer: D) Thermosetting

Explanation:

Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remouldedor reheated after their initial heat-forming. This contrasts withthermoplastics, which soften when heated and harden and strengthen after cooling. Thermoplastics can be heated, shaped and cooled as often as necessary without causing a chemical change, while thermosetting plastics will burn when heated after the initial moulding.

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Filed Under: General Science
Exam Prep: Bank Exams

3 2166
Q:

Srinivasan invests two equal amounts in two banks giving 8% and 12% rate of interest respectively. At the end of year the interest earned is Rs. 1500. Find the sum invested in each.

A) Rs. 5800 B) Rs. 15000
C) Rs. 7500 D) Rs. 17,000
 
Answer & Explanation Answer: C) Rs. 7500

Explanation:

Let the sum invested be x.
⇒ 8x/100 + 12x/100 = 1500
⇒ 20x = 150000
⇒ x = 7500

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Filed Under: Simple Interest
Exam Prep: Bank Exams

3 2165