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Q:

A box contains 2 blue balls, 3 green balls and 4 yellow balls. In how many ways can 3 balls be drawn from the box, if at least one green ball is to be included in the draw?

A) 48 B) 24
C) 64 D) 32
 
Answer & Explanation Answer: C) 64

Explanation:

Total number of balls = 2 + 3 + 4 = 9

Total number of ways 3 balls can be drawn from 9 = 9C3

No green ball is drawn = 9 - 3 = 6 = 6C3

Required number of ways if atleast one green ball is to be included = Total number of ways - No green ball is drawn

= 9C3 - 6C3

= 9x8x7/3x2  -  6x5x4/3x2

= 84 - 20

= 64 ways.

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

6 4466
Q:

How many Teaspoons in a Tablespoon?

A) 4 B) 5
C) 2 D) 3
 
Answer & Explanation Answer: D) 3

Explanation:

Tablespoon > Teaspoon

In US & UK, 1 Tablespoon = 3 Teaspoons.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Database Administration , IT Trainer

7 4465
Q:

Dot cabs company provides cabs for software employees. The company has 8 Swift dzires, 6 Scorpios, 7 Innovas and few small cars. If Swift dzire makes one fourth of the total fleet, how many small cars are there in the company ?

A) 9 B) 10
C) 11 D) 12
 
Answer & Explanation Answer: C) 11

Explanation:

Given the company has 8 SD + 6 SRP + 7 IN = 21 cars + 'x' small cars.
Given SD makes 1/4 th of the total fleet.
=> 8 = 1/4 (21 + x)
=> 32 = 21 + x
=> x = 11
Therefore, the company has 11 small cars.

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

3 4465
Q:

Clay is an example of

A) Aquiclude B) Glossy
C) Utilitarian D) None of the above
 
Answer & Explanation Answer: A) Aquiclude

Explanation:

Clay is an example of Aquiclude.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

0 4465
Q:

A farmer buys a goat and a sheep for Rs 3500. He sold the sheep at a profit of 20 percent and the goat at a loss of 10 percent. If he sold both the animals at the same price, then the cost price (in Rs) of the cheaper animal was?

A) 2000 B) 1500
C) 1750 D) 2250
 
Answer & Explanation Answer: B) 1500

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

10 4465
Q:

How many Nephrons are in each kidney?

A) 10,000 B) 1,00,000
C) 1,000,000 D) 1000
 
Answer & Explanation Answer: C) 1,000,000

Explanation:

There are about 1,000,000 nephrons in each human kidney.

Nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood.

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

2 4462
Q:

Niligiri Tahr is the state animal of which of the following states ?

A) Tamil Nadu B) Karnataka
C) Maharashtra D) Kerala
 
Answer & Explanation Answer: A) Tamil Nadu

Explanation:
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Filed Under: Animals and Birds
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

20 4461
Q:

Pointing to a person Laxmi said " She is the only grand daughter of my grand mother's daughter." How that person is related to Laxmi ?

A) Daughter B) Aunt
C) Mother D) Niece / Sister
 
Answer & Explanation Answer: D) Niece / Sister

Explanation:
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Filed Under: Blood Relations
Exam Prep: Bank Exams
Job Role: Bank PO

15 4460