Exams


Q:

The ratio of present ages of Hema and Chinnu is 13:17. Four years ago the ratio of their ages was 11:15. What will be the ratio of their ages six years hence ?

A) 3 : 7 B) 7 : 9
C) 4 : 5 D) 1 : 3
 
Answer & Explanation Answer: C) 4 : 5

Explanation:

Let their present ages be 13x and 17x.
Then, 13x-4/17x-4 = 11/15.
Solving this, we get x = 2.
Required ratio = 13x2 + 6/17x2 + 6 = 32/40 = 4/5.

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Filed Under: Problems on Ages
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9 6721
Q:

The Value of  logtan10+logtan20++logtan890 is

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

Explanation:

= log tan10+log tan890 + log tan20+ log tan880++log tan450  

 

= log [tan10 × tan890] + log [tan20 × tan880 ] ++log1  

 

 tan(90-θ)=cotθ and tan 450=1  

 

= log 1 + log 1 +.....+log 1 

 

= 0.

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Filed Under: Logarithms
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27 6716
Q:

If 6 (P's Capital ) = 8 ( Q's Capital ) = 12 ( R's Capital ) , then out of the total profit of Rs 4650 , R will receive ?

A) Rs. 1033.33 B) Rs. 1024
C) Rs. 1148.14 D) Rs. 1245.32
 
Answer & Explanation Answer: A) Rs. 1033.33

Explanation:

Let
P's capital = p,
Q's capital = q and
R's capital = r.
Then

6p = 8q = 12r
=> 3p = 4q = 6r
=>q = 3p/4
r = 3p/6 = p/2
P : Q : R = p : 3p/4 : p/2
= 4 : 3 : 2
R's share = 4650 * (2/9) = 150*6 = Rs. 1033.33.

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Filed Under: Partnership
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3 6715
Q:

Israel’s Rafael Defense Systems ltd has formed a joint venture with ________ to produce anti-tank guided missiles for the Indian armed forces.

A) Goa Shipyard B) Hindustan Aeronautics Limited
C) Kalyani Group D) Hindustan Aeronautics Limited
 
Answer & Explanation Answer: C) Kalyani Group

Explanation:
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Filed Under: General Awareness
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9 6714
Q:

Which statement fits the Frontier Ethic?

A) Recycle plastic B) Help those in need
C) He who has more toys wins D) Walk lightly on Earth
 
Answer & Explanation Answer: C) He who has more toys wins

Explanation:

Frontier Ethic is Spending Earth's assets at the cost of losing resource capital. A frontier ethic assumes that the earth has an unlimited supply of resources. It is the notion of disregarding the Earth for the benefit or gain of man.

If resources run out in one area, more can be found elsewhere or alternatively human ingenuity will find substitutes. This attitude sees humans as masters who manage the planet. It is completely Anthropocentric.

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Filed Under: General Science
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10 6713
Q:

What building has the most stories?

Answer

A Libraury. It has more number of story books in it to read.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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5 6709
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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Filed Under: General Science
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10 6708
Q:

There are 5 multiple choice questions in an examination. How many sequences of answers are possible, if the first three questions have 4 choices each and the next two have 6 choices each?

A) 1112 B) 2304
C) 1224 D) 2426
 
Answer & Explanation Answer: B) 2304

Explanation:

Number of questions = 5
Possibilities of choices for each question 1 to 5 respectively = 4, 4, 4, 6, 6


Reuired total number of sequences

= 4 x 4 x 4 x 6 x 6

= 2304.

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Filed Under: Permutations and Combinations
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20 6701