Questions

Q:

Can you slove this Maths Puzzle?

maths_puzzle1537500715.jpg image

A) 12 B) 6
C) 3 D) 1
 
Answer & Explanation Answer: B) 6

Explanation:

In the given puzzle, the logic behind is

9 = 72 => 9 x 8 = 72

8 = 56 => 8 x 7 = 56

7 = 42 => 7 x 6 = 42

6 = 30 => 6 x 5 = 30

5 = 20 => 5 x 4 = 20

 

Similarly,

4 = 12 => 4 x 3 = 12

3 = 6 => 3 x 2 = 6

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Q:

A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height?

A) 2.87 sec B) 3.44 sec
C) 4.65 sec D) 5.41 sec
 
Answer & Explanation Answer: B) 3.44 sec

Explanation:

It is launched vertically with an initial speed of 110 ft/sec.

It will reach maximum height when the speed drops to 0.

Vo=110 feet per second 

ho=2 feet 

So, h(t) = -16t^2 +110t +2 

Take the derivative: h'(t) = 110 -32t 

The maximum height will be at the inflection when the derivative crosses the x-axis, then h'(t)=0. 

So, set h'(t)=0 and solve for t: 

0 = 110 -32t 

-110 = -32t 

t=3.4375 

t=3.44 seconds.

 

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3 6604
Q:

NREGP is the abbreviated form of

A) National Rural Employment Guarantee Programme B) National Rural Educational Guarantee Programme
C) National Rapid Employment Guarantee Programme D) National Rapid Educational Guarantee Programme
 
Answer & Explanation Answer: A) National Rural Employment Guarantee Programme

Explanation:
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Q:

Which of the following is not a Jovian planet?

A) Jupiter B) Earth
C) Saturn D) Neptune
 
Answer & Explanation Answer: B) Earth

Explanation:

Earth is not a Jovian Planet as it is a Terrestrial planet.

A planet designated as Jovian is hence a gas giant, composed primarily of hydrogen and helium gas with varying degrees of heavier elements.

 

Within the Solar System, four Jovian planets exist – Jupiter, Saturn, Uranus, and Neptune. Though these planets vary in terms of size, mass, and composition, they all share certain characteristics that cause them to differ greatly from the terrestrial planets located in the inner Solar System.

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12 6597
Q:

Cosmetic powders are prepared from

A) Talc B) Serpentine
C) Asbestos D) Gypsum
 
Answer & Explanation Answer: A) Talc

Explanation:

Cosmetic powders are prepared from Talc.

Face powder is a cosmetic powder applied to the face to set a foundation after application. It can also be reapplied throughout the day to minimize shininess caused by oily skin. There is translucent sheer powder, and there is pigmented powder.

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11 6593
Q:

The Gandhi Sagar Dam is built on which river in Madhya Pradesh?

A) Tapti B) Chambal
C) Narmada D) None
 
Answer & Explanation Answer: B) Chambal

Explanation:

The Gandhi Sagar Dam is built on Chambal river and is located in the Mandsaur & Neemuch district of Madhya Pradesh.

 

The dam’s reservoir area is the second-largest in India (after the Hirakud Reservoir), and attracts a large number of migratory and non-migratory birds throughout the year.

 

It is a masonry gravity dam, standing 62.17 metres (204.0 ft) high.

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10 6588
Q:

Clove the commonly used spice is obtained from the

A) stem B) root
C) flower bud D) fruit
 
Answer & Explanation Answer: C) flower bud

Explanation:

Clove the commonly used spice which is obtained from the flower buds of a tree in the family Myrtaceae, Syzygium aromaticum.

clove_the_commonly_used_spice_is_obtained_from_the1536734920.jpg image

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10 6586
Q:

Which of the following is tropical grassland?

A) Savannah B) Pampas
C) Prairies D) Taiga
 
Answer & Explanation Answer: A) Savannah

Explanation:

Tropical grasslands, or savannas, are also the homes of primates in Africa and Asia; no savanna-living primates exist in South America. Tropical grasslands comprise a mixture of trees and grasses, the proportion of trees to grass varying directly with the rainfall.

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11 6582