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Q:

Of three positive numbers, the ratio of first and second is 5 : 2, ratio of second and third is 5 : 4. The product of first and third is 1800. What is the sum of the three numbers?

A) 43 B) 133
C) 119 D) 129
 
Answer & Explanation Answer: D) 129

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

If cot ­-4π/3 = x, then the value of x is

A) -1 B) -1/√3
C) √3 D) 1
 
Answer & Explanation Answer: B) -1/√3

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Filed Under: Simplification
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Q:

Which of the following is an example of thermoplastics?

A) Bakelite B) Melamine
C) PVC D) No option is correct
 
Answer & Explanation Answer: C) PVC

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

Acceleration due to gravity on a planet decreases with ______.

A) decrease in radius of the planet B) increase in mass of the planet
C) decrease in mass of the body D) increase in altitude from surface of the planet
 
Answer & Explanation Answer: D) increase in altitude from surface of the planet

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

The sum of the ages of husband and wife at present is 60. Four years ago the ratio of their ages was 7:6. What is the age of the husband?

A) 28 years B) 32 years
C) 42 years D) 38 years
 
Answer & Explanation Answer: B) 32 years

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

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Q:

In an army selection process, the ratio of selected to unselected was 5:1. If 100 less had applied and 20 less selected, the ratio of selected to unselected would have been 6:1. How many candidates had applied for the process?

A) 5520 B) 2760
C) 1380 D) 8280
 
Answer & Explanation Answer: B) 2760

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Filed Under: Ratios and Proportions
Exam Prep: Bank Exams

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Q:

Why do the plant closes stomata when it does NOT need carbon dioxide for photosynthesis?

A) To store carbon dioxide B) To prevent water loss
C) To release stored oxygen D) No option is correct
 
Answer & Explanation Answer: B) To prevent water loss

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Filed Under: General Science
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Q:

If sin ­-330° = x, then the value of x is

A) √3/2 B) 1/2
C) -2/√3 D) √2
 
Answer & Explanation Answer: B) 1/2

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Filed Under: Simplification
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