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Staff Selection Commission Combined Higher Secondary Level Exam

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Question : An inlet pipe can fill an empty tank in 51 hours while an outlet pipe drains a filled tank in 76.5 hours. If both the pipes are opened simultaneously when the tank is empty, in how many hours will the tank get filled?

Option 1: 178.5

Option 2: 127.5

Option 3: 102

Option 4: 153

Team Careers360 23rd Jan, 2024

Correct Answer: 153


Solution : Given:
An inlet pipe can fill an empty tank in 51 hours while an outlet pipe drains a filled tank in 76.5 hours.
In 1 hour inlet pipe fills = $\frac{1}{51}$ part
In 1 hour outlet pipe empties = $\frac{1}{76.5}$ part
When both open at

20 Views

Question : Which article of the Indian Constitution empowers Indian Parliament to amend the constitution?

Option 1: Article 368

Option 2: Article 252

Option 3: Article 254

Option 4: Article 256

Team Careers360 25th Jan, 2024

Correct Answer: Article 368


Solution : The correct option is Article 368.

Article 368 of the Indian Constitution outlines the framework for constitutional amendments. Article 368 of the Indian Constitution addresses the method and authority for amending the Constitution. It covers the various methods for making amendments as well

2 Views

Question : Directions: In the following question, select the missing number from the given alternatives:

  6   10   9
  7    2   1
  3    4   ?

 

Option 1: 9

Option 2: 8

Option 3: 6

Option 4: 7

Team Careers360 24th Jan, 2024

Correct Answer: 6


Solution : Given:

  6   10   9
  7    2   1
  3    4   ?

Adding the numbers in each column,
Column 1: 6 + 7 + 3 = 16 
Column 2: 10 + 2 + 4 = 16 
Similarly for Column 3: 9 + 1 + ? = 16

18 Views

Question : Simplify: $\sqrt{\frac{4\frac{1}{7}-2\frac{1}{4}}{3\frac{1}{2}+1\frac{1}{7}}+\frac{2}{2+\frac{1}{2+\frac{1}{5-\frac{1}{5}}}}}$

Option 1: $1$

Option 2: $4$

Option 3: $\sqrt{\frac{159}{130}}$

Option 4: $2$

Team Careers360 23rd Jan, 2024

Correct Answer: $\sqrt{\frac{159}{130}}$


Solution : $\sqrt{\frac{4\frac{1}{7}-2\frac{1}{4}}{3\frac{1}{2}+1\frac{1}{7}}+\frac{2}{2+\frac{1}{2+\frac{1}{5-\frac{1}{5}}}}}$
= $\sqrt{\frac{\frac{29}{7}-\frac{9}{4}}{\frac{7}{2}+\frac{8}{7}}+\frac{2}{2+\frac{1}{2+\frac{5}{24}}}}$
= $\sqrt{\frac{\frac{53}{28}}{\frac{65}{14}}+\frac{2}{2+\frac{24}{53}}}$
= $\sqrt{\frac{53}{130}+\frac{106}{130}}$
= $\sqrt{\frac{159}{130}}$
Hence, the correct answer is $\sqrt{\frac{159}{130}}$.

61 Views

Question : If four-fifths of five-sixths of one-eighth of a certain number is 4365, what is 65% of the number?

Option 1: 36,375

Option 2: 53,280

Option 3: 34,047

Option 4: 52,380

Team Careers360 25th Jan, 2024

Correct Answer: 34,047


Solution : Let the number be $n$.
According to the question,
$\frac{4}{5} \times \frac{5}{6} \times \frac{1}{8} \times n = 4365$
$⇒\frac{1}{12} \times n = 4365$
$⇒n = 4365 \times 12 = 52380$
Now, 65% of $n = \frac{65}{100} \times 52380 = 34047$
Hence, the correct answer is

13 Views

Question : The gas that causes suffocation and death when coal or coke is burnt in a closed room is

Option 1: Methane

Option 2: Ethane

Option 3: Carbon Monoxide

Option 4: Carbon Dioxide

Team Careers360 24th Jan, 2024

Correct Answer: Carbon Monoxide


Solution : The correct option is Carbon Monoxide.

Carbon Monoxide (CO) is the gas that can result from burning coal, or coke in a closed space. Colourless and odourless, carbon monoxide is created when fuels containing carbon, like coal or coke, burn incompletely. A buildup

11 Views

Question : Directions: Out of the given letter clusters, three are similar in a certain manner. However, one option is NOT like the other three. Select the option which is different from the rest.

Option 1: EIO

Option 2: IOU

Option 3: EID

Option 4: AEI

Team Careers360 24th Jan, 2024

Correct Answer: EID


Solution : Let's check the options –

First option: EIO→E, I, O; all are vowels
Second option: IOU→I, O; U all are vowels
Third option: EID→E, I, D; here D is not a vowel
Fourth option: AEI→A, E, I; all are vowels

So, the third option is

17 Views

Question :

Which of the following amphibians lacks tongue?

Option 1:

Sphenodon

Option 2:

Salamander

Option 3: Ichthyophis

 

Option 4: Necturus

Team Careers360 23rd Jan, 2024

Correct Answer: Ichthyophis

 


Solution : The correct option is - Ichthyophis

Tongue is absent in Ichthyophis. The limbless amphibian is frequently referred to as the Asian caecilians. The western Indo-Australian Archipelago, the Philippines, and Southeast Asia are all places where you ichthyophis can be found.

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