Staff Selection Commission Combined Higher Secondary Level Exam
Question : A cask having a capacity of 600 litres is initially filled with wine. From this cask $y$ litres of wine are first drawn and replaced with water. From this mixture, 120 litres are drawn and replaced with water. From this further diluted mixture. 120 litres are drawn again and replaced with water. The ratio of wine to water in the cask is now 12 : 13. What is the value of $y$?
Option 1: 125
Option 2: 150
Option 3: 200
Option 4: 100
Correct Answer: 150
Solution : Let the initial amount of water in the cask be $y$ litres. The initial amount of wine in the cask = $600-y$ litres The ratio of wine to water = 12 : 13 So, Ratio of wine is to mixture = 12 : 25 We
Question : If the three medians of a triangle are the same then the triangle is:
Option 1: equilateral
Option 2: isosceles
Option 3: right angled
Option 4: obtuse angle
Correct Answer: equilateral
Solution : If the three medians of a triangle are of equal length, then the triangle is equilateral. Hence, the correct answer is equilateral.
Question : The distance of the Sun from the Earth is about ______ light minutes.
Option 1: 6
Option 2: 4.3
Option 3: 12
Option 4: 8
Correct Answer: 8
Solution : The correct answer is 8.
One light year is the period it takes light to traverse in one year. Light from the sun's photosphere takes about 8.3 minutes to reach Earth, implying that the sun is only 8.3 light minutes or 1.5781e-5 light years distant.
Question : Select the grammatically correct version of the following sentence.
I like my puppies, Mac and Matt, but I like Matt best.
Option 1: I like my puppies, Mac and Matt, but I like Matt better.
Option 2: I like my puppies, Mac and Matt, but I like Matt the best.
Option 3: I like my puppies, Mac and Matt, but I like Matt much.
Option 4: I like my puppies, Mac and Matt, but I like Matt most.
Correct Answer: I like my puppies, Mac and Matt, but I like Matt better.
Solution : The correct choice is the first option.
Better is the correct comparative form that should be used in the sentence in place of best, which is superlative. It correctly conveys the intended meaning that
Question : Arid soils are characteristically developed in ________________, which exhibit characteristic arid topography.
Option 1: Southern Uttar Pradesh
Option 2: Western Uttar Pradesh
Option 3: Western Rajasthan
Option 4: Southern Rajasthan
Correct Answer: Western Rajasthan
Solution : The correct option is Western Rajasthan.
Arid soils are characteristically developed in arid regions, which exhibit characteristic arid topography. Arid regions are characterised by low precipitation levels, leading to water deficiency and the formation of soils adapted to arid conditions. Due to the challenging
Question : Select the most appropriate ANTONYM of the given word.
Penury
Option 1: Emergency
Option 2: Opulence
Option 3: Regression
Option 4: Euphemism
Correct Answer: Opulence
Solution : The correct choice is the second option.
The word penury means the state of being very poor. The antonym opulence means the quality of being expensive and luxurious.
The meanings of the other options are as follows:
Question : Which of these is not true about the Green Revolution?
Option 1: It was funded by international agencies.
Option 2: It was a private-sector programme for agricultural modernisation.
Option 3: It was targeted mainly in the wheat and rice-growing areas.
Option 4: It was introduced only in areas that had assured irrigation.
Correct Answer: It was a private-sector programme for agricultural modernisation.
Solution : The correct option is It was a private-sector programme for agricultural modernisation.
The Green Revolution in India was not exclusively a private-sector programme; it involved a combination of public and private efforts to achieve agricultural modernisation. The Indian
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on line MN). So, the left side of the reflected image will appear
Question : Directions: In the following question, select the missing number from the given responses.
Option 2: 7
Option 3: 10
Option 4: 11
Correct Answer: 7
Solution : Given:
The pattern followed is as follows – In the first part; 16 + 20 = 36; 36 ÷ 2 = 18 In the second part; 18 + 22 = 40; 40 ÷ 2 = 20
Question : The compound interest on Rs. 12000 for 9 months at 20% per annum, interest being compounded quarterly is:
Option 1: Rs. 1,750
Option 2: Rs. 2,089.70
Option 3: Rs. 1,891.50
Option 4: Rs. 2,136.40
Correct Answer: Rs. 1,891.50
Solution : Given: The Principal amount is Rs. 12,000, the annual interest rate (in decimal form) is 20% per annum, the number of times interest is compounded per year is 4 and the time the money is invested for (in years) is 9 months, which is
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