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Staff Selection Commission Sub Inspector Exam

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113 Views

Question : The ratio between the height and radius of the base of a cylinder is 7 : 5. If its volume is 14836.5 cm3, then find its total surface area (take $\pi$ = 3.14).

Option 1: 3391.2 cm2

Option 2: 5391.2 cm2

Option 3: 4391.2 cm2

Option 4: 5591.2 cm2

Team Careers360 21st Jan, 2024

Correct Answer: 3391.2 cm2


Solution : Given,
The ratio between the height and radius of the base of a cylinder is 7 : 5.
Volume is 14836.5 cm3
Let the height be $7x$ and the radius be $5x$.
According to the question,
Volume of cylinder = $\pi r^2h$

4 Views

Question : Comprehension:

Read the given passage and answer the questions that follow.

Fishing traps, baskets, cradles, bridges, rainproof hats and umbrellas, mats, musical instruments, and water pipes—Indians have always used bamboo in numerous ways. It is used for house construction, fencing, and the making of bullock carts. Low-cost domestic furniture and a vast range of domestic utility items made of bamboo can be easily seen in any of our bazaars. But we do not easily notice the countless little ways this modest material comes to be used by rural people. One can see it being used in the blacksmith’s bellows, as bamboo pins in carpentry joints, or in the fabrication of toys in village markets. But to the British foresters, the multidimensional role that “the forest weed” played in the local Indian environment was of no account, as it did not figure in forest revenues. Bamboo also interfered with the growth of teak, an essential part of their colonial forest policy. It was only in the 1920s that the British realised that by mincing bamboo into millimetre shreds, cooking it in chemicals, and pulping and flattening it, they could produce sheets of paper. This would bring the British increased forest revenue and ‘development’ (as defined by them) to the so-called backward regions of India. However, they chose to ignore the consequences this activity would have on the health of the forest. So while bamboo was sold at high prices to basket weavers, it was heavily subsidised for the paper industry. Even after Independence, supplying bamboo at extremely low prices to Indian paper mills became a ‘patriotic’ duty of the government, and bamboo supplies were assured for decades at unchanged prices. The disaster that this would cause to the forests and to the craftsperson still remained unforeseen. Colonialism affected forests all across India and marginalised their inhabitants and the traditional occupations they practised. As late as the 1970s, the World Bank proposed that 4,600 hectares of natural Sal forest should be replaced by tropical pine to provide pulp for the paper industry. It was only after protests by local environmentalists that the project was stopped. Colonialism was therefore not only about repression; it was also a story of displacement, impoverishment, and ecological crisis.

Question 

Bamboo is referred to as ‘modest material’ because:

Option 1: it is available in abundance in India

Option 2: the British believed it was worthless

Option 3: it can be easily shredded and reduced to a pulp

Option 4: it is inexpensive and not highly acclaimed

Team Careers360 21st Jan, 2024

Correct Answer: it is inexpensive and not highly acclaimed


Solution : The correct choice is the fourth option.

Explanation: In the context of the passage, the author highlights how bamboo, despite its versatile uses and significance in rural life, is not considered valuable by the British foresters. The British,

33 Views

Question : Directions: Sunil's position from the left in a row of boys is 20th, and Deepak's position from the right is 36th. After changing positions, Sunil becomes 28th from the left. How many boys are there in the row?

Option 1: 52

Option 2: 63

Option 3: 59

Option 4: 48

Team Careers360 21st Jan, 2024

Correct Answer: 63


Solution : Given:
Sunil's position from left = 20th
Deepak's position from right = 36th

After interchanging their positions, Sunil's position from left = 28, and Sunil's position from right = 36

So, the total number of boys in a row = Sunil's position from left +

14 Views

Question : Directions: Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term.
E25I : A5E :: Z49T : V7P :: P144K : ?

Option 1: L12H

Option 2: L12G

Option 3: L14G

Option 4: L13G

Team Careers360 22nd Jan, 2024

Correct Answer: L12G


Solution : Given:
E25I : A5E :: Z49T : V7P :: P144K : ?

Like, E25I : A5E→E(5) – 4 = A; √25 = 5; I(9) – 4 = E
And, Z49T : V7P→Z(26) – 4 = V; √49 = 7; T(20) – 4 = P
Similarly,

225 Views

Question : Study the pie-chart carefully and answer the questions.

What is the central angle corresponding to the total expenditure, expenditure on education in the given figure?

Option 1: 55.8°

Option 2: 55.2°

Option 3: 52°

Option 4: 42°

Team Careers360 19th Jan, 2024

Correct Answer: 55.8°


Solution : From the given figure,
Total = 5250 + 6125 + 7525 + 6475 + 4200 + 5425 = 35000
For education, amount spent = 5425
Central angle = $\frac{\text{Amount spent on education}}{\text{Total amount spent}}\times360°$
= $\frac{5425}{35000}\times 360°$
= 55.8°
Hence, the correct answer is 55.8°.

292 Views

Question : The sum of the two numbers is 1224 and their HCF is 68. The number of pairs of numbers satisfying the above condition is:

Option 1: 3

Option 2: 4

Option 3: 6

Option 4: 2

Team Careers360 19th Jan, 2024

Correct Answer: 3


Solution : Given: The sum of the two numbers is 1224 and their HCF is 68.
Let the two numbers be $68x$ and $68y$.
According to the question,
$68x + 68y=1224$
⇒ $x+y=18$
So, the possible pairs of values which are co-prime to each other are (1,

129 Views

Question : The number of hours spent by a student on different activities as shown in the following pie chart:

The central angle corresponding to the sleeping time is what percentage of the whole central angle?

Option 1: 66.66%

Option 2: 33.33%

Option 3: 55%

Option 4: 50%

Team Careers360 22nd Jan, 2024

Correct Answer: 33.33%


Solution : Number of hours spent on sleeping = 8
Total hours spent in all activities = 24
Required percentage = $\frac{\text{Time spent on sleeping}}{\text{Total hours in all activities}}\times100$
= $\frac{8}{24}\times100$
= 33.33%
Hence, the correct answer is 33.33%.

19 Views

Question : Who authored the book "Modi's Midas Touch in Foreign Policy"?

Option 1: Surendra Kumar

Option 2: Sunita Narain

Option 3: P. S. Negi

Option 4: Anuj Dhar

Team Careers360 21st Jan, 2024

Correct Answer: Surendra Kumar


Solution : The correct option is Surendra Kumar.

Surendra Kumar, a former ambassador, wrote the book "Modi's Midas Touch in Foreign Policy". The book describes how far India has come and how the Hon. Prime Minister has left his indelible mark on the country's foreign policy

27 Views

Question : The population of a town increases each year by 4% of its total at the beginning of the year. If the population on 1st January 2001 was 500000, what was it on 1st January 2004?

Option 1: 562432

Option 2: 652432

Option 3: 465223

Option 4: 564232

Team Careers360 19th Jan, 2024

Correct Answer: 562432


Solution : The population after $n$ years can be calculated by using the formula $P(1+\frac{\text{R}}{100})^n$ where $P$ is the initial value, $R$ is the rate and $n$ is the time.
The population on 1st January 2001 was 500000.
Population after 3 years
$= 500000(1+\frac{4}{100})^3$
$= 500000(1+\frac{1}{25})^3$

13 Views

Question : The speed of a boat in still water is 15 km/hr, and the speed of the current is 5 km/hr. In how much time (in hours) will the boat travel a distance of 60 km upstream and the same distance downstream?

Option 1: 20

Option 2: 12

Option 3: 9

Option 4: 10

Team Careers360 25th Jan, 2024

Correct Answer: 9


Solution :

Given,
The speed of a boat in still water is 15 km/hr
The speed of the current is 5 km/hr
Distance of upstream or downstream = 60 km
We know,
$\text{Time} = \frac{\text{Distance}}{\text{Speed}}$
Also, If the speed of the boat is $x$ km/hr, and the

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