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Q:

Isotopes are atoms of the same element that have different

A) mass numbers	B) atomic numbers
C) protons	D) All of the above

Answer & Explanation Answer: A) mass numbers

Explanation:

Isotopes are atoms of the same element that have different mass numbers.

Example : Hydrogen, Deutirium and tritium all these have different mass but same atomic numbers.

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Filed Under: Chemistry
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Q:

Words that sound the same but are spelled different

words_that_sound_the_same_but_are_spelled_different1540289338.jpg image

A) Homonyms	B) Homographs
C) Heteronyms	D) Homophones

Answer & Explanation Answer: D) Homophones

Explanation:

Words that sound the same but are spelled different are called homophones. Homophones are a type of homonyms.

Some of the Examples of homophones are ::

One - Won

Son - Sun

Hole - Whole

Loan - Lone

Steal - Steel

Which - Witch

What - Watt

Sea - See

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Filed Under: English
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Q:

A sum of Rs. 2600 is invested at two different rates of interest. The difference between the simple interests got after 4 years is Rs 402.80 at these two rates, what is the difference between the rates of interest?

A) 1.58	B) 2.63
C) 3.87	D) 4.02

Answer & Explanation Answer: C) 3.87

Explanation:

Let the two different rates of interests be r1 and r2 respectively.

From the given data,

$\frac{2600 x 4 x (r 1 - r 2)}{100} = 402.80 (r 1 - r 2) = \frac{402.80}{104} = 3.87$

Hence, the difference in the interest rates = 3.87

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Filed Under: Simple Interest
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Q:

In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels always come together?

A) 720	B) 1440
C) 1800	D) 3600

Answer & Explanation Answer: B) 1440

Explanation:

Given word is THERAPY.

Number of letters in the given word = 7

Number of vowels in the given word = 2 = A & E

Required number of different ways, the letters of the word THERAPY arranged such that vowels always come together is

6! x 2! = 720 x 2 = 1440.

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Filed Under: Permutations and Combinations
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Q:

While selling a router, a shopkeeper gives a discount of 15%. If he gives a discount of 20%, he earns Rs. 51 less as profit. What is the original marked price of the router?

A) Rs. 1000	B) Rs. 1020
C) Rs. 1040	D) Rs. 980

Answer & Explanation Answer: B) Rs. 1020

Explanation:

Let the marked price of the router be Rs. P

From the given data,

$P x \frac{85}{100} - P x \frac{80}{100} = 51 P x \frac{5}{100} = 51 \Rightarrow P = \frac{5100}{5} = 1020$

Hence, the original marked price of the router is Rs. 1020.

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Filed Under: Profit and Loss
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Q:

What does it mean if a micrograph is false colored?

Answer

If a micrograph is false-colored, it means that the computer has created the colour for the object since we know that the electron microscopes sees only black and white colours.

Workspace

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

What is the term for classifying and grouping organisms?

A) Homology	B) Taxonomy
C) Biology	D) Zeology

Answer & Explanation Answer: B) Taxonomy

Explanation:

The term for classifying and grouping organisms is Taxonomy. It is the science of defining and naming groups of biological organisms on the basis of shared characteristics.

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Filed Under: General Science
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Q:

If intermediate goods and services were included in GDP

A) the price level may change over time.	B) the GDP would be overstated.
C) the price level rose by more than nominal GDP.	D) All of the above

Answer & Explanation Answer: B) the GDP would be overstated.

Explanation:

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Filed Under: Indian Economy
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