What should come in place of the question mark (?) in the following number series ? 13, 13, 65, 585, 7605, 129285, ?

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What should come in place of the question mark (?) in the following number series ?
13, 13, 65, 585, 7605, 129285, ?

A2456415

B2235675

C2980565

D2714985

Nithin K ? May 3 '2018 at 20:36

Correct Answer: D [2714985]

Explanation:

\(13 \times 1 = 13 \)

\(13 \times 5 = 65 \)

\(65 \times 9 = 585 \)

\(585 \times 13 = 7605 \)

\(7605 \times 17 = 129285 \)

\(129285 \times 21 = 2714985 \)

So the next number is 2714985.
The series is 13, 13, 65, 585, 7605, 129285, 2714985.

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From the alternatives, select the set which is most alike the set (23,29,31).

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From the alternatives, select the set which is most alike the set (23,29,31).

A(17, 21, 29)

B(31, 37, 49)

C(13, 15, 23)

D(41, 43, 47)

Nithin K ? May 1 '2018 at 11:26

Correct Answer: D [(41, 43, 47)]

Explanation:

Set (23. 29, 31) consists of prime numbers. The alike set is (41. 43.47) consisting all prime numbers.

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How many letters in the word TRYST have as many letters between them as in the alphabet?

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How many letters in the word TRYST have as many letters between them as in the alphabet?

ANone

B2

C3

D4

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Project Tiger was launched in

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Project Tiger was launched in

A1973

B1976

C1978

D1983

Nithin K ? May 1 '2018 at 10:36

Correct Answer: A [1973]

Explanation:

Project Tiger was launched by Indian government in 1973. It is one of the most famous wildlife conservation project of India.The main aim of the project is to protect diminishing population of Royal Bengal tigers of India.
The project has to maintain two types of areas namely core zones and buffer zones. Core zones are totally free form human settlements. Bufferzones are the lands used for conserving the species of Tiger.

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The curves showing the volume temperature behavior of gases plotted at different fixed pressures are called

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The curves showing the volume temperature behavior of gases plotted at different fixed pressures are called

Aisochors

Bisobars

CV.T.P. curves

Disocurves

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The wire of flash bulb is made of

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The wire of flash bulb is made of

ACopper

BBarium

CMagnesium

DSilver

Nithin K ? May 1 '2018 at 9:50

Correct Answer : C [Magnesium]
Explanation :
In 1893, Chauffour made an ancestor of the flash bulb; this had magnesium

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The first summit of SAARC was held at

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The first summit of SAARC was held at

AKathmandu

BColombo

CNew Delhi

DDhaka

Nithin K ? May 1 '2018 at 9:40

Correct Answer: D [Dhaka]

Explanation:

1985 in Dhaka  

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