Staff Selection Commission Sub Inspector Exam
Question : Direction: The following table shows the production of food grains (in million tonnes) in a state for the period 1999-2000 to 2003-2004. Read the table and answer the question.
In 2002-2003, the percentage increase in the production of barley as compared to the previous year was:
Option 1: 14.20%
Option 2: 17.85%
Option 3: 18.75%
Option 4: 7.90%
Correct Answer: 18.75%
Solution : Barley production in 2002–2003 = 380 million tonnes The previous year's production of barley = 320 million tonnes Increase in percentage = $\frac{\text{Current year – Previous year}}{\text{Previous year}}×100$ = $\frac{380-320}{320}×100$ = $\frac{60}{320}×100$ = 18.75% Hence, the correct answer is 18.75%.
Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series. –1, 0, ?, 8, 15, 24
Option 1: 4
Option 2: 3
Option 3: 2
Option 4: 1
Correct Answer: 3
Solution : Given: –1, 0, ?, 8, 15, 24
Add consecutive odd numbers to the previous term to obtain the next term in the series – –1 + 1 = 0; 0 + 3 = 3; 3 + 5 = 8; 8 + 7 = 15; 15
Question : Directions: Study the following graph and answer the questions. The number on the top of a bar is the number of TV. Demand and production of colour TV of five companies A, B, C, D, and E.
The demand of company D is approximately what percentage of the demand of company E?
Option 1: 12%
Option 2: 20%
Option 3: 24%
Option 4: 30%
Correct Answer: 24%
Solution : As per the given graph, The demand of company D = 600 The demand of company E = 2500 The required percentage = $\frac{600}{2500}$ × 100 = 24% Hence, the correct answer is 24%.
Question : If $\sin 3x=\cos(3x-45^{\circ}), 0^{\circ}<3x<90^{\circ}$, then $x$ is equal to:
Option 1: $45^\circ$
Option 2: $22.5^\circ$
Option 3: $35^\circ$
Option 4: $27.5^\circ$
Correct Answer: $22.5^\circ$
Solution : Given: $\sin 3x = \cos(3x - 45^\circ)$ We know that, $\sin \theta = \cos(90^\circ - \theta)$ ⇒ $\sin 3x = \sin(90^\circ - (3x- 45^\circ))$ ⇒ $3x = 90^\circ - 3x+45^\circ$ ⇒ $6x = 135^\circ$ ⇒ $x = 22.5^\circ$ Hence, the correct answer is $22.5^\circ$.
Question : Jeevan can do a piece of work alone in 42 days, while Rishi and Jeevan together can do the same piece of work in 27 days. How many days will Rishi take to complete the same piece of work alone?
Option 1: $74 \frac{3}{5}$
Option 2: $75 \frac{1}{5}$
Option 3: $75 \frac{4}{5}$
Option 4: $75 \frac{3}{5}$
Correct Answer: $75 \frac{3}{5}$
Solution : Time taken by Jeevan to complete the work = 42 days Part of work done by Jeevan in a day = $\frac{1}{42}$ Let $x$ be the time taken by Rishi to complete the work. Part of work done by Rishi in a day =
Question : Annual production of four different types of cold drinks has been tabulated below. Which of these cold drinks has encountered a maximum percentage increment in production?
Option 1: Coca-cola
Option 2: Pepsi
Option 3: Fanta
Option 4: Sprite
Correct Answer: Fanta
Solution : The percentage increment in production for each cold drink can be calculated, Percentage Increment = $\frac{\text{Final Value} - \text{Initial Value}}{\text{Initial Value}} \times 100$ The percentage increment for each cold drink: 1. Sprite : $\frac{5800 - 5400}{5400} \times 100 = 7.41$% 2. Coca-cola : $\frac{5600 -
Question : Comprehension:
Read the given passage and answer the questions that follow.
On May 2, 2018, severe dust storms and thunderstorms hit parts of Rajasthan, Uttar Pradesh, and other adjoining regions. Explaining the reasons behind such a severe weather system, M. Mohapatra, a senior scientist with the India Meteorological Department (IMD), said that dust storms and thunderstorms are a result of nearly similar weather conditions, like intense heat. Areas that have moisture in the air experience thunderstorms, while those which don't have moisture experience dust storms. "All such conditions were being fulfilled on that day. The region had moist easterly winds coming from the Bay of Bengal, and there was a western disturbance system too. All this together triggered the events on May 2," he added.
In simple terms, a dust storm can be explained as a phenomenon when strong winds carry dust over an extensive area.
As far as the timing of their occurrence is concerned, Mohapatra stated that there is no deviation in time of occurrence of a dust storm or thunderstorm activity, as they usually peak in the pre-monsoon period.
These events happen between March and May only. In the pre-monsoon period, temperatures are very high, around 44–45 degrees Celsius, which leads to such activities.
Even though dust storms and thunderstorms are a common feature every year, there has been no focused work on studying the trends related to them. "In the coming years, there could be more instances of intense thunderstorms and sand storms, but they have to be studied in detail, looking at the data from over 30-40 years to notice a trend. Work has been more or less confined to cyclones and monsoon systems, but not much on dust storms or thunderstorms. It needs study," admitted Mohapatra.
The extent of damage caused by thunderstorm activity in India can be gauged from the data of India's National Crime Records Bureau (NCRB). As per the NCRB data, compared to other natural disasters like cyclones, floods, or heat waves, lightning kills more people in India. For instance, at least 25 per cent of the 10,510 accidental deaths attributable to forces of nature in 2015 were due to lightning. The number of deaths due to lightning has constantly remained over 2,000 every year since 2005.
Question:
Among the natural disasters, which is the highest killer in India?
Option 1: Heat waves
Option 2: Lightning
Option 3: Cyclones
Option 4: Floods
Correct Answer: Lightning
Solution : The second option is correct.
The passage highlights data from India's National Crime Records Bureau, revealing that lightning causes the highest number of deaths among natural disasters in India. In 2015, at least 25% of the 10,510 deaths attributed to forces of nature were due
Question : Which of the following statements is incorrect about the Green Revolution?
Option 1: It was funded by international agencies
Option 2: It was introduced in areas that were rain-fed
Option 3: It was targeted mainly at the wheat and rice-growing areas
Option 4: It was a government programme of agricultural modernisation
Correct Answer: It was introduced in areas that were rain-fed
Solution : The correct option is It was introduced in areas that were rain-fed.
The Green Revolution was primarily introduced in irrigated areas rather than rain-fed regions. The use of high-yielding varieties of crops, modern agricultural techniques, and increased irrigation
Question : Which one of the following states is called 'God's Own Country' in India?
Option 1: Kerala
Option 2: Uttar Pradesh
Option 3: West Bengal
Option 4: Goa
Correct Answer: Kerala
Solution : The correct option is Kerala.
Kerala is commonly referred to as "God's Own Country". The state is renowned for its rich wildlife, palm-lined beaches, spice farms, and backwaters. Many national parks and wildlife sanctuaries can be found in Kerala. One of the most widely recognised
Question : Directions: Select the option in which the numbers share the same relationship as that shared by the given pair of numbers. 48 : 60
Option 1: 64 : 72
Option 2: 98 : 114
Option 3: 78 : 94
Option 4: 86 : 100
Correct Answer: 86 : 100
Solution : Given: 48 : 60
Add the first number to the sum of its digits – 48 : 60→(4 + 8) + 48 = 12 + 48 = 60
Now, let's check each option – First Option: 64 : 72→(6 + 4) + 64
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