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Staff Selection Commission Multi Tasking Staff Exam

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Question : Pipes A and B together can fill a tank in 10 hours. Pipes B and C together can fill the same tank in 12 hours. Pipes A and C together can fill the same tank in 15 hours. In how many hours can pipe B alone fill the same tank?

Option 1: $\frac{120}{7}$ hours

Option 2: $15$ hours

Option 3: $\frac{120}{11}$ hours

Option 4: $\frac{155}{13}$ hours

Team Careers360 22nd Jan, 2024

Correct Answer: $\frac{120}{7}$ hours


Solution : Pipes A and B together can fill a tank in 10 hours. Pipes B and C together can fill the same tank in 12 hours. Pipes A and C together can fill the same tank in 15 hours.
According to the question,
Work done

14 Views

Question : The toxic metal associated with the Minamata disease is:

Option 1: lead

Option 2: cadmium

Option 3: arsenic

Option 4: mercury

Team Careers360 21st Jan, 2024

Correct Answer: mercury


Solution : The correct option is mercury.

The Minamata incident occurred in the 1950s, and 1960s in Minamata, Japan, as a result of a chemical factory controlled by the Chisso Corporation releasing methylmercury into the waters of Minamata Bay. The deadly mercury compound made its way

11 Views

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

Leave no stone unturned

Option 1: To act in a strange manner

Option 2: Make all possible efforts

Option 3: To get fired from the job

Option 4: Not willing to accept the ideas of others

Team Careers360 14th Jan, 2024

Correct Answer: Make all possible efforts


Solution : The correct choice is the second option.

Explanation:
This phrase implies putting in exhaustive effort, leaving nothing overlooked or unexplored, to achieve a particular goal. It suggests thoroughness and determination in pursuing something.

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Question : The following table shows the yearly production of scooters (in thousands) in different factories. In which year the total production of scooters from all factories was equal to the yearly average number of scooters produced during 2015-2019?

Factory Year
2015 2016 2017 2018 2019
A 25 30 15 23 16
B 14 24 12 17 20
C 20 41 17 21 13
D 40 39 35 32 41
E 16 15 22 15 12
Total 115 149 101 108 102

Option 1: 2015

Option 2: 2017

Option 3: 2016

Option 4: 2018

Team Careers360 14th Jan, 2024

Correct Answer: 2015


Solution : Yearly average number of scooters produced during 2015-2019
= $\frac{115+149+101+108+102}{5}$
= $\frac{575}{5}$
= 115
The total production of scooters from all factories was equal to the yearly average number of scooters produced during 2015-2019 in the year 2015.
Hence, the correct answer is 2015.

43 Views

Question : A 200 m long train is running at a speed of 100 km/hr. In how much time will it pass a man standing near the railway line?

Option 1: 10.4 sec

Option 2: 9.2 sec

Option 3: 7.2 sec

Option 4: 6.4 sec

Team Careers360 24th Jan, 2024

Correct Answer: 7.2 sec


Solution : Length of train = 200 m
Speed of train = 100 km/hr
1 km/hr = $\frac{5}{18}$ m/sec
100 km/hr = $100 \times \frac{5}{18}=\frac{250}{9}$ m/sec
Time = $\frac{\text{Distance}}{\text{Speed}}=\frac{200}{(\frac{250}{9})}=7.2$ sec
Hence, the correct answer is 7.2 sec.

14 Views

Question : Directions: In the given question, a sentence is given with a blank to be filled in with an appropriate word. Four alternatives are suggested for each question. Choose the correct alternative out of the four alternatives.

He is getting married _________ Maya.

Option 1: only

Option 2: by

Option 3: with

Option 4: to

Team Careers360 22nd Jan, 2024

Correct Answer: to


Solution : The correct choice is the fourth option.

The preposition "to" is the correct choice in this sentence because it is used to indicate the person to whom someone is getting married. In this context, "to" is the appropriate preposition to connect the subject (he)

25 Views

Question : If the volume of a cube is 5832 cm3, then what is the lateral surface area of this cube?

Option 1: 1024 cm2

Option 2: 384 cm2

Option 3: 576 cm2

Option 4: 1296 cm2

Team Careers360 17th Jan, 2024

Correct Answer: 1296 cm2


Solution : The volume of a cube is given by the formula \(V = a^3\), where \(a\) is the edge length of the cube. 
Given that the volume of the cube is 5832 cm3.
$a = \sqrt[3]{V} = \sqrt[3]{5832} = 18 \, \text{cm}$

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