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10 Views

Question : Who among the following has been selected for the Padma Vibhushan Award under the category 'Trade and Industry-Infrastructure' for 2019?

Option 1: Anil Manibhai Naik

Option 2: Atul Punj

Option 3: G.V. Sanjay Reddy 

Option 4: Grandhi Mallikarjuna Rao

Team Careers360 24th Jan, 2024

Correct Answer: Anil Manibhai Naik


Solution : The correct option is Anil Manibhai Naik.

Anil Manibhai Naik, the former Group Executive Chairman of Larsen & Toubro (L&T), was awarded the Padma Vibhushan in the field of Trade and Industry for the year 2019. Anil Manibhai Naik has been recognised

9 Views

Question : If $a x+b y=1$ and $b x+a y=\frac{2 a b}{a^2+b^2}$, then the value of $x$ (in terms of $a$ and $b$) is:

Option 1: $\frac{2 b}{a^2+b^2}$

Option 2: $\frac{a}{a^2+b^2}$

Option 3: $\frac{b}{a^2+b^2}$

Option 4: $\frac{2 a}{a^2+b^2}$

Team Careers360 13th Jan, 2024

Correct Answer: $\frac{a}{a^2+b^2}$


Solution : Given, $ax+by=1$ ....(1)
And, $bx+ay=\frac{2ab}{a^2+b^2}$ ......(2)
From $ax+by=1$, we get,
⇒ $y=\frac{1-ax}{b}$
Putting in (2), we get,
$bx+a\times \frac{1-ax}{b}=\frac{2ab}{a^2+b^2}$
⇒ $b^2x+a(1-ax)=\frac{2ab^2}{a^2+b^2}$
⇒ $b^2x+a-a^2x=\frac{2ab^2}{a^2+b^2}$
⇒ $(b^2-a^2)x+a=\frac{2ab^2}{a^2+b^2}$
⇒ $(b^2-a^2)x=\frac{2ab^2}{a^2+b^2}-a$
⇒ $(b^2-a^2)x=\frac{2ab^2-a(a^2+b^2)}{a^2+b^2}$
⇒ $x=\frac{2ab^2-a^3-ab^2}{(a^2+b^2)(b^2-a^2)}$
⇒ $x=\frac{ab^2-a^3}{(a^2+b^2)(b^2-a^2)}$
⇒ $x=\frac{a(b^2-a^2)}{(a^2+b^2)(b^2-a^2)}$
$\therefore x=\frac{a}{a^2+b^2}$
Hence, the correct answer is $\frac{a}{a^2+b^2}$.

15 Views

Question : Select the most appropriate option to fill in the blank.
Some health experts optimistically argue that disinfecting indoor spaces with light could be a ________.

Option 1: roundabout

Option 2: hand over

Option 3: game-changer

Option 4: interchanger

Team Careers360 9th Jan, 2024

Correct Answer: game-changer


Solution : The second option is correct.

In the given sentence, the word optimistically suggests that the health experts believe this approach could be very effective.
Now, among the given options, the correct word to use is "game-changer".
Game-changer is an idiomatic expression that means something that

14 Views

Question : "Dreams From My Father" is an autobiography of ________.

Option 1: Benito Mussolini

Option 2: Anne Frank

Option 3: Benjamin Franklin

Option 4: Barack Obama

Team Careers360 25th Jan, 2024

Correct Answer: Barack Obama


Solution : The correct answer is Barack Obama.

"Dreams from My Father" is an autobiography written by Barack Obama, who later became the 44th President of the United States. The book provides insights into Obama's early life, family background, and journey of self-discovery, exploring themes

8 Views

Question : The Sahara is located in which part of Africa?

Option 1: Eastern

Option 2: Western

Option 3: Northern

Option 4: Southern

Team Careers360 12th Jan, 2024

Correct Answer: Northern


Solution : The correct answer is Northern.

The Sahara Desert is located in the northern part of Africa and spans over 10 countries: Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, and Tunisia. It covers nearly 31% of the total land area of Africa. It

13 Views

Question : A, B, and C can do a job working alone in 50, 75 and 20 days, respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?

Option 1: 20

Option 2: 30

Option 3: 18

Option 4: 24

Team Careers360 16th Jan, 2024

Correct Answer: 20


Solution : Given:
A, B, and C can do a job working alone for 50, 75 and 20 days, respectively.
Total work = LCM of (50, 75, 20) = 300 units
Efficiency of A = $\frac{300}{50}=6$
Efficiency of B = $\frac{300}{75}=4$
Efficiency of C = $\frac{300}{20}=15$
Total

13 Views

Question : Which of the following is not an Igneous Rock ?

Option 1: Dolomite

Option 2: Granite

Option 3: Basalt

Option 4: Gabbro

Team Careers360 19th Jan, 2024

Correct Answer: Dolomite


Solution : The correct answer is Dolomite.

Igneous rocks, also known as primary rocks, are formed from magma and lava from the earth's interior. Texture is used to classify igneous rocks into various types. Texture is determined by the size and distribution of grains, as well as other

130 Views

Question : A train starts from station A and reaches station B.15 minutes late when it moves at 40 km/hr and 24 minutes late when it goes at 30 km/hr. The distance between the two stations is

Option 1: 24 km

Option 2: 16 km

Option 3: 18 km

 

Option 4: 21 km

Team Careers360 17th Jan, 2024

Correct Answer: 18 km

 


Solution : Given: A train starts from station A and reaches station B.15 minutes late when it moves at 40 km/hr and 24 minutes late when it goes at 30 km/hr.

Here, we have to find the distance.

Let x kilometers represent the separation between stations

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