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11 Views

Question : Algae belong to which of the following levels of ecosystems?

Option 1: Decomposers

Option 2: Destructors

Option 3: Producers

Option 4: Consumers

Team Careers360 21st Jan, 2024

Correct Answer: Producers


Solution : The correct option is Producers.

Algae are primary producers in an aquatic environment because they are autotrophic. Algae are autotrophic creatures that generate their food via photosynthesis. In aquatic habitats, algae are at the bottom of the food chain. They capture solar energy and turn

11 Views

Question : If $x=\frac{1}{2+\sqrt{3}}$ and $y=\frac{1}{2-\sqrt{3}},$ then the value of $8xy(x^{2}+y^{2})$ is:

Option 1: 196

Option 2: 290

Option 3: 112

Option 4: 194

Team Careers360 21st Jan, 2024

Correct Answer: 112


Solution : To solve this problem, we first need to calculate the values of $x$ and $y$.
$x=\frac{1}{2+\sqrt{3}}×\frac{2-\sqrt{3}}{2-\sqrt{3}}=\frac{2-\sqrt{3}}{1}$
$y=\frac{1}{2-\sqrt{3}}×\frac{2+\sqrt{3}}{2+\sqrt{3}}=\frac{2+\sqrt{3}}{1}$
Now, $x+y =4$............(I)
Also, $xy=(2-\sqrt{3})\times (2+\sqrt{3}) =1$.............(II)
Squaring both sides of equation (I)
⇒ $x^2+y^2+2xy=16$
⇒ $x^2+y^2+2\times1=16$
⇒ $x^2+y^2=14$
Putting the value of $x^2+y^2$ and $xy$ in $8xy(x^{2}+y^{2})$,

19 Views

Question : Which law was proposed in 1811, predicted that the same volume of gases at the same temperature and pressure would have the same number of molecules?

Option 1: Dalton’s law

Option 2: Gay-Lussac’s law

Option 3: Avogadro’s law

Option 4: Charles' law

Team Careers360 22nd Jan, 2024

Correct Answer: Avogadro’s law


Solution : The correct answer is Avogadro's law.

Avogadro's law, named after the Italian scientist Amedeo Carlo Avogadro, states that equal volumes of gases at the same temperature and pressure contain the same number of molecules.

This law implies that the molar volume of any

70 Views

Question : Directions: Which number will replace the question mark (?) in the following series?
16, 32, ?, 192, 576, 1152

Option 1: 48

Option 2: 80

Option 3: 64

Option 4: 96

Team Careers360 24th Jan, 2024

Correct Answer: 96


Solution : Given:
16, 32, ?, 192, 576, 1152

Multiply the previous term by 2 and 3 alternately to get the next term.
16 × 2 = 32; 32 × 3 = 96; 96 × 2 = 192; 192 × 3 = 576; 576 × 2 =

24 Views

Question : The average age of 6 members of a family is 25 years. If the youngest member is 4 years old, then what was the average age of the family just before the birth of the youngest member?

Option 1: 27.2 years

Option 2: 24.8 years

Option 3: 32.8 years

Option 4: 25.2 years

Team Careers360 23rd Jan, 2024

Correct Answer: 25.2 years


Solution : Given: The average age of 6 members of a family is 25 years.
The total age of 6 members of a family = 6 × 25 = 150
Age of youngest member = 4 years
Total ages of people before the birth of youngest

19 Views

Question : Comprehension:

Read the given passage and answer the questions that follow.

I was a chef in the Taj banquet kitchen when the gunshots started that night. Initially, the news was that it was an internal gang war in a neighbourhood nearby and that it would die down soon. It was only at about 10.30 or 11 p.m. that we understood the magnitude of what was going on. We were seven chefs in the kitchen that night, not one of whom left the Taj despite knowing all exit points. By then, the shootout had happened at the Wasabi restaurant, and all those who had survived were pouring into the banquet hall and kitchen where we were working.
As soon as we heard about the shootout, we prepared sandwiches for our surviving guests, which we then handed out. After this, we entered the corridor to escort our guests out of the hotel through the back entrance. We had successfully helped a few guests when I saw the left profile of a terrorist in a red cap who began shooting. I was standing next to a refrigerator when my head chef and his assistant chef both got shot. There was chaos, panic, and fear as our guests started running everywhere, but by then they had opened fire in all directions.
All of a sudden, everything went quiet, and that silence was the worst. I tried looking around for survivors, but it was just me. I stayed there for a few hours until I realised that no help would be coming anytime soon. I looked at the refrigerator where I'd been only a while ago, and it had 3 bullet holes in it. I'd narrowly escaped death, but it was horrifying to see that my guests and colleagues hadn't been as lucky. I won't look back on that day as just a terrorist attack, but as a day when many brave individuals looked death in the eye to help others.
 

Question:-

Which of the following did the hotel staff do?
a) Served snacks to the guests
b) Escorted guests out of the hotel
c) Escorted guests to their rooms
d) Looked around for survivors
e) Ran here and there in fear and panic
f) Ran out of the hotel to save themselves

Option 1: a, c and e

Option 2: c, e and f

Option 3: b, d and f

Option 4: a, b and d

Team Careers360 20th Jan, 2024

Correct Answer: a, b and d


Solution : The fourth option is the correct answer.

Explanation:
The passage mentions that the hotel staff, upon hearing about the shootout, prepared sandwiches for the surviving guests (served snacks), escorted the guests out of the hotel through the back entrance, and the narrator,

16 Views

Question : The book titled "The Immortals of Meluha" is written by ______.

Option 1: Sushil Kumar

Option 2: Devdutt Pattanaik

Option 3: Amish Tripathi

Option 4: Chetan Bhagat

Team Careers360 21st Jan, 2024

Correct Answer: Amish Tripathi


Solution : The correct answer is Amish Tripathi.

"The Immortals of Meluha" is written by Amish Tripathi. This book is the first book of the Shiva Trilogy. The story starts with the Arrival of Shiva, which is set in the land of Meluha. The theme

11 Views

Question : An inverted conical–shaped vessel is filled with water to its brim. The height of the vessel is 8 cm and the radius of the open end is 5 cm. When a few solid spherical metallic balls each of radius $\frac{1}{2}$ cm are dropped in the vessel, 25% water is overflowed. The number of balls is:

Option 1: 100

Option 2: 400

Option 3: 200

Option 4: 150

Team Careers360 20th Jan, 2024

Correct Answer: 100


Solution : Given: Height of the vessel = 8 cm
Radius = 5 cm.
Volume of the conical vessel = $\frac{1}{3}\pi r^2 h$
= $\frac{1}{3}\times \pi\times 5^2\times 8$
= $\frac{200}{3}\pi$ cm$^3$
The volume of 25% of water = $\frac{1}{4}\times\frac{200}{3}\pi=\frac{50}{3}\pi$ cm$^3$
The volume of the spherical metallic ball

10 Views

Question : Who among the following was among the founders of the Jugantor Party?

Option 1: Rash Behari Bose

Option 2: Surendranath Banerjee

Option 3: Bipin Chandra Pal

Option 4: Aurobindo Ghosh

Team Careers360 24th Jan, 2024

Correct Answer: Aurobindo Ghosh


Solution : The correct answer is Aurobindo Ghosh.

Jugantor Party was a leading revolutionary organization in colonial Bengal. The party was established in April 1906 by leaders like Aurobindo Ghosh, his brother Barin Ghosh, Hemchandra Kanungo and Upen Banerjee. Along with 21 revolutionaries, they started

22 Views

Question : Directions: Five girls A, B, C, Z, and U are sitting in a row, facing toward the south (but not necessarily in the same order). No one is sitting to the right of A. Three girls are sitting to the left of U. B is second to the left of C. Who is sitting second to the left of U?

Option 1: U

Option 2: Z

Option 3: A

Option 4: B

Team Careers360 21st Jan, 2024

Correct Answer: Z


Solution : Given:
(I) Five girls A, B, C, Z, and U are sitting in a row, facing towards the south.
    South facing row; Right end; _, _, _, _, _;Left end
(II) No one is sitting to the right of A. Three girls are sitting to

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