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92 Views

Question : The average age of Ram and Shyam is 28 years. If Rahim replaces Ram, then the average age will become 26 years. If Rahim replaces Shyam, then the average age will become 30 years. What are the respective ages of Ram, Shyam, and Rahim?

Option 1: 32 years, 24 years, and 28 years

Option 2: 34 years, 40 years, and 30 years

Option 3: 48 years, 40 years, and 26 years

Option 4: 38 years, 44 years, and 36 years

Team Careers360 22nd Jan, 2024

Correct Answer: 32 years, 24 years, and 28 years


Solution : Average of Ram's and Shyam's age = 28
⇒ $\text{Ram + Shyam}=28\times2=56$
Average of Rahim's and Shyam's age = 26
⇒ $\text{Rahim + Shyam}=26\times2=52$
Average of Ram's and Rahim's age = 30
⇒ $\text{Ram + Rahim}=30\times2=60$
The sum of

112 Views

Question : If solution A contains 10% acid and solution B contains 30% acid, what ratio of solution A to solution B should be mixed to obtain a mixture with 25% acid?

Option 1: 1 : 2

Option 2: 3 : 1

Option 3: 1 :  3

Option 4: 2 : 1

Team Careers360 25th Jan, 2024

Correct Answer: 1 :  3


Solution : Given:
A contains 10% acid, solution B contains 30% acid and the mixture contains 25% acid.
Using the rule of alligation, we get,


So, the required ratio = 5 : 15 = 1 : 3
Hence, the correct answer is 1 : 3.

12 Views

Question : The body of the ______ is circular in cross-section; hence, the name roundworms. They may be free-living, aquatic, terrestrial, or parasitic on plants and animals.

Option 1: Platyhelminthes

Option 2: Ctenophores

Option 3: Mollusca

Option 4: Aschelminthes

Team Careers360 25th Jan, 2024

Correct Answer: Aschelminthes


Solution : The correct answer is Aschelminthes.

Another name used for roundworms is Aschelminthes. This may be free-living, or parasitic. This means they are found in nature alone or may also be present in the bodies of other organisms. One distinguished characteristic of this organism is the

17 Views

Question :

Taxonomy is a science that deals with:

Option 1:

Morphology

Option 2:

Anatomy

Option 3: Classification

 

Option 4: Economic uses

Team Careers360 25th Jan, 2024

Correct Answer: Classification

 


Solution : The correct option is Classification.

The science of classifying organisms is known as taxonomy. It is a vast discipline that includes organism identification, description, naming, and classification. Taxonomy is founded on the idea that all organisms are linked to one another and may be classified

9 Views

Question : What is an Azolla?

Option 1: Fern

Option 2: Algae

Option 3: Fungi

Option 4: Bryophytes

Team Careers360 23rd Jan, 2024

Correct Answer: Fern


Solution : The correct answer is Fern.

Azolla is a genus of seven species of aquatic ferns in the Salviniaceae family, which includes mosquito fern, duckweed fern, fairy moss and water fern. Their structure is highly specialised and reduced. They resemble certain mosses or duckweed rather than

71 Views

Question : Directions: Based on the alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?

Option 1: RPT

Option 2: YWA

Option 3: FDH

Option 4: EJN

Team Careers360 23rd Jan, 2024

Correct Answer: EJN


Solution : Let's check the options –
First option: RPT→R – 2 = P; P + 4 = T
Second option: YWA→Y – 2 = W; W + 4 = A
Third option: FDH→F – 2 = D; D + 4 = H
Fourth option: EJN→E +

22 Views

Question : Directions: Which of the following cubes in the answer figure cannot be made based on the unfolded cube in the question figure?

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 22nd Jan, 2024

Correct Answer:


Solution : Properties of a dice –
1. Opposite faces of a dice cannot appear or hide together. 
2. Sides of the opposite faces of a dice cannot touch each other.
Rules to find out the opposite faces of a dice when two or more positions of the

28 Views

Question : Select the most appropriate idiom for the following sentence. 

The government arrested the opposition leader, making the situation worse.

Option 1: To cast pearls before swine

Option 2: To be on the last leg

Option 3: To add fuel to the fire

Option 4: To bite the dust

Team Careers360 25th Jan, 2024

Correct Answer: To add fuel to the fire


Solution : The correct choice is the third option.

To add fuel to the fire means to make the situation worse or miserable.

The meanings of the other options are as follows:

  • To bite the dust: This means to be killed,
15 Views

Question : An aeroplane covers a certain distance at a speed of 400 km/hr in 8 hours. To cover the same distance in 5 hours, the speed of the aeroplane will be:

Option 1: 640 km/hr

Option 2: 680 km/hr

Option 3: 580 km/hr

Option 4: 600 km/hr

Team Careers360 22nd Jan, 2024

Correct Answer: 640 km/hr


Solution : Given: An aeroplane covers a certain distance at a speed of 400 km/hr in 8 hours.
Here, distance = (400 × 8) km, time = 5 hours
So, the required speed = $\frac{\text{distance}}{\text{time}}$
= $\frac{400×8}{5}$
= 640 km/hr
Hence, the correct answer is 640

13 Views

Question : In the plant kingdom, "Ferns and Fern allies" belong to which group?

Option 1: Bryophyta

Option 2: Gymnosperms

Option 3: Thallophyta

Option 4: Pteridophyta

Team Careers360 24th Jan, 2024

Correct Answer: Pteridophyta


Solution : The correct answer is Pteridophyta.

In the plant kingdom, there are different types of plants with distinct characteristics and ways of reproduction. Ferns and Fern allies are part of a group called Pteridophyta. This group comprises plants that reproduce through spores and not seeds.

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