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27 Views

Question : In measuring the sides of a rectangle, there is an excess of 5% on one side and a 2% deficit on the other. Then the error percentage in the area is:

Option 1: 3.3%

Option 2: 3.0%

Option 3: 2.9%

Option 4: 2.7%

Team Careers360 23rd Jan, 2024

Correct Answer: 2.9%


Solution : Given: In measuring the sides of a rectangle, there is an excess of 5% on one side and a 2% deficit on the other.
We will use the successive percentage change formula.
$\therefore$ Required percentage = $(5-2-\frac{5×2}{100})=(3-0.1)=2.9$%
Hence, the correct answer is 2.9%.

9 Views

Question : Whose law states that total energy per unit mass of flowing fluid, at any point in the subsurface, is the sum of the kinetic, potential and fluid-pressure energy and is equal to a constant value?

Option 1: Daniel Bernoulli

Option 2: Evangelista Torricelli

Option 3: Blaise Pascal

Option 4: Marie Poiseuille

Team Careers360 24th Jan, 2024

Correct Answer: Daniel Bernoulli


Solution : The correct option is Daniel Bernoulli.

Bernoulli's principle, which is named after Daniel Bernoulli, a Swiss mathematician and physicist, states that the total energy per unit mass of flowing fluid at any point in the subsurface (or any point in the flow) is

116 Views

Question : Identify the segment in the sentence which contains a grammatical error.
The jury are from different parts of the country.

Option 1: are from

Option 2: The jury

Option 3: different parts

Option 4: of the country

Team Careers360 19th Jan, 2024

Correct Answer: are from


Solution : The error lies in the first option.

Explanation:
The error lies in the subject-verb agreement. Jury is a collective noun, and it's typically treated as singular. In this case, however, the error is in the usage of the plural verb are with the collective

72 Views

how i can do prepration of uppsc

Sajal Trivedi 18th Jan, 2024

Hello aspirant,

One of the most well-liked state civil service examinations in the nation is the UPPSC PCS test. The UPSC IAS test pattern is now more similar to the UP PCS exam pattern thanks to changes made by the UPPSC in recent years. Every year, thousands of candidates take

13 Views

Question : Select the most appropriate meaning of the given idiom.
Gift of the gab

Option 1: Fluency of speech

Option 2: Freedom of speech

Option 3: First speech

Option 4: Figures of speech

Team Careers360 21st Jan, 2024

Correct Answer: Fluency of speech


Solution : The correct choice is the first option.

Gift of the gab refers to the ability to speak eloquently and persuasively. It implies having a natural talent or skill for effective and articulate verbal communication. Fluency of speech means the same, thus making it

62 Views

Question : A boat is moving away from an observation tower. It makes an angle of depression of 60° with an observer's eye when at a distance of 50 metres from the tower. After 8 seconds, the angle of depression becomes 30º. By assuming that it is running in still water, the approximate speed of the boat is:

Option 1: 33 km/h

Option 2: 42 km/h

Option 3: 45 km/h

Option 4: 50 km/h

Team Careers360 23rd Jan, 2024

Correct Answer: 45 km/h


Solution :
Given: The boat makes an angle of depression of 60º with an observer's eye when at a distance of 50 metres from the tower. After 8 seconds, the angle of depression becomes 30°.
Solution: Let $CD = x$ m
In $\triangle ABD$
$\tan 60°=\frac{AB}{AC}$

20 Views

Question : A completes 30% of a project in 30 days. He then calls in B and they together finish the remaining work in 20 days. How long would B alone take to do the whole work?

Option 1: 40 days

Option 2: 80 days

Option 3: 120 days

Option 4: 20 days

Team Careers360 21st Jan, 2024

Correct Answer: 40 days


Solution : Given: A completes 30% of a project in 30 days.
Let the total work be 100 units.
Since we know that, Total work = Efficiency × Time.
So, A's efficiency is $\frac{30}{30}$ = 1 unit each day.
After that, he calls B and the

15 Views

Question : The compound interest on Rs. 64,000 for 3 years, compounded annually at 7.5% p.a. is:

Option 1: Rs. 14,400

Option 2: Rs. 15,705

Option 3: Rs. 15,507

Option 4: Rs. 15,075

Team Careers360 21st Jan, 2024

Correct Answer: Rs. 15,507


Solution : Amount = $P(1+\frac{R}{100})^{n}$ to calculate the answer.
Where P is the principal amount, R is the rate of interest per annum, and n is the time in years.
Amount = $64000(1+\frac{7.5}{100})^{3}$ = Rs. 79,507
CI = Rs. 79,507 – Rs. 64,000 = Rs.15,507
Hence,

17 Views

Question : The term of trade refers to_____.

Option 1: the excess of import expenditures over export earnings

Option 2: the trade agreements

Option 3: the terms and conditions on which a country is offered loan

Option 4: the ratio between export prices and import prices

Team Careers360 23rd Jan, 2024

Correct Answer: the ratio between export prices and import prices


Solution : The correct option is the ratio between export prices and import prices.

In 1927, the term trade was first used by US economist Frank William Taussig. The term trade refers to the ratio at which a country can

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