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Q:

The third proportional to 9 and 12 is ?

A) 14 B) 16
C) 18 D) 20
 
Answer & Explanation Answer: B) 16

Explanation:

Let the third proportion to 9 & 12 be 'x'.

=> 9:12 = 12 :p

=> p = 12x12/9 = 16.

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Filed Under: Ratios and Proportions
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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168 40126
Q:

What is the common ratio of the following geometric sequence?

4, 2, 1, 0.5, 0.25, 0.125,...

A) 0.5 B) -1
C) 1.5 D) -0.5
 
Answer & Explanation Answer: A) 0.5

Explanation:

In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.

 

Herein the given sequence, 4, 2, 1, 0.5, 0.25, 0.125,...

Common Ratio r = 2/4 = 1/2 = 0.5/1 = 0.25/0.5 = 0.125/0.25 == 0.5.

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Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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3 40107
Q:

In the following question, select the missing number from the given series.

43, 44, 46, 47, 49, 49, 50, ?

A) 54 B) 53
C) 51 D) 52
 
Answer & Explanation Answer: D) 52

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

6 40105
Q:

The national Temple of Bangladesh is _________.

 

A) Jagannath Temple, Pabna B) Boro Kali Bari Temple, Mymensingh
C) Dhakeshwari Temple, Dhaka D) Sugandha Shaktipeeth, Barisal
 
Answer & Explanation Answer: C) Dhakeshwari Temple, Dhaka

Explanation:
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Filed Under: World Geography
Exam Prep: Bank Exams

8 40098
Q:

Select the related word/letters/number from the given alternatives.

 

1331 : 11:: 13824 : ?

 

A) 20 B) 23
C) 18 D) 24
 
Answer & Explanation Answer: D) 24

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 40080
Q:

With reference to earthquakes, which of the following statements are correct?

A. Earthquakes largely occur along the converging plate boundaries.

B. Point of origin of earthquake in lithosphere is known as focus/hypocenter.

C. Intensity of earthquake decreases with distance from the epicenter.

D. Epicentre of earthquake always remains over continents only.

Select the correct answer using the code given below.

A) 1 and 2 only B) 1, 2 and 3
C) 2 and 3 only D) 1 and 4
 
Answer & Explanation Answer: B) 1, 2 and 3

Explanation:

Epicentre of Earthquakes can be over both oceanic and continental surface. Epicentres above oceanic surface are cause of tsunamisof large intensity. Anearthquake's hypocentreis the position where the strain energy stored in the rockis first released, marking thepointwhere the fault begins to rupture.

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Filed Under: General Science
Exam Prep: Bank Exams

2 40073
Q:

8, 15, 28, 53, ?, 199

A) 101 B) 102
C) 103 D) 104
 
Answer & Explanation Answer: B) 102

Explanation:

Here the series of the form is x2 - 1, x2 - 2, x2 - 3,...

 53 x 2 - 4 = 106 - 4 = 102

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Filed Under: Number Series
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325 40000
Q:

___ is the number of shells for elements of the 3rd period.

 

A) 1 B) 0
C) 2 D) 3
 
Answer & Explanation Answer: D) 3

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

0 39999