Staff Selection Commission Combined Graduate Level Exam
Question : A, B, and C can do a piece of work in 11 days, 20 days, and 55 days respectively. If B works daily and is supported by A and C on alternate days beginning with A, then in how many days will the work be finished?
Option 1: $10$
Option 2: $9 \frac{1}{3}$
Option 3: $12$
Option 4: $8$
Correct Answer: $9 \frac{1}{3}$
Solution : A, B, and C can do a piece of work in 11 days, 20 days, and 55 days respectively. Total work = LCM(11, 20 and 55) = 220 Efficiency of A = $\frac{220}{11}$ = 20 Efficiency of B = $\frac{220}{20}$ = 11 Efficiency of
Question : Respiration is regarded as a
Option 1: Synthetic Process
Option 2: Catabolic Process
Option 3: Anabolic Process
Option 4: Reduction Process
Correct Answer: Catabolic Process
Solution : The correct option is catabolic process.
Respiration is considered a catabolic process. Catabolism refers to metabolic processes in which complex molecules are broken down into simpler ones, generating energy in the process. Cellular respiration is a catabolic process that happens in cells and involves
Question : Which Indian state has the largest share of the wastelands in India?
Option 1: Gujarat
Option 2: Andhra Pradesh
Option 3: Madhya Pradesh
Option 4: Rajasthan
Correct Answer: Rajasthan
Solution : The correct answer is Rajasthan.
Any piece of land which is left uncultivated for 5 years is known as wasteland in geography. Rajasthan is the state with the most waste land in the country. It accounts for 18% of total wasteland of India. Presently 25%
Question : Directions: The ratio of the present ages of Aman and Ankit is 2 : 1 and the sum of their present ages is 72 years. What will be Aman's age (in years) after 6 years?
Option 1: 30
Option 2: 48
Option 3: 52
Option 4: 54
Correct Answer: 54
Solution : Given: The ratio of the present ages of Aman and Ankit is 2 : 1.
Let Aman's present age be 2y and Ankit's present age be y. The sum of their present ages is 72 years. ⇒ 2y + y = 72 ⇒ 3y =
Question : Directions: Select the related letter cluster from the given alternatives. OOQR : QQST :: UUWX : ?
Option 1: WWYZ
Option 2: YYWZ
Option 3: ZZWY
Option 4: YYZZ
Correct Answer: WWYZ
Solution : Given: OOQR : QQST :: UUWX : ?
Like, OOQR→O + 2 = Q; O + 2 = Q; Q + 2 = S; R + 2 = T Thus, OOQR is related to QQST. Similarly, follow the same pattern for UUWX – U +
Question : If the difference between the compound interest and simple interest on a sum of money for 3 years is Rs. 186, find the sum of money, if the interest rate in both cases is 10%.
Option 1: Rs. 5,500
Option 2: Rs. 7,200
Option 3: Rs. 6,500
Option 4: Rs. 6,000
Correct Answer: Rs. 6,000
Solution : Given: Difference = Rs. 186 Rate = 10% Time = 3 years By applying the formula for finding the difference between CI and SI: Difference = Principal$(\frac{R}{100})^2(\frac{R}{100}+3)$ ⇒ 186 = Principal$(\frac{10}{100})^2(\frac{10}{100}+3)$ ⇒ 186 = Principal$(\frac{1}{10})^2(\frac{1}{10}+3)$ ⇒ 186 = Principal$(\frac{1}{100})(\frac{31}{10})$ Principal = $(\frac{186×10×100}{31})$ = 6000
Question : Given below are four jumbled sentences. Select the option that gives their correct order forming a meaningful and coherent paragraph.
A. He tried covering himself from head to foot with a sheet, but that was suffocating, so he gave up. B. To his relief, Upen Babu found him a mosquito net. C. The next morning he told Upen Babu about his problem. D. Mosquitoes did not let him sleep the first night.
Option 1: DACB
Option 2: DCBA
Option 3: CDAB
Option 4: ADBC
Correct Answer: DACB
Solution : The correct choice is the first option.
Question : Directions: In the following question, out of the four alternatives, select the alternative that will improve the bracketed part of the sentence. In case no improvement is needed, select "No Improvement".
I welcome all the delegates (on behalf of) ABC Corporation.
(1) on the account of
(2) on the parts of
(3) for
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The correct choice is the fourth option.
The bracketed part of the sentence "on behalf of" is the correct choice to express that you are welcoming the delegates as a representative of ABC Corporation. None of the other options improve the sentence.
The correct answer
Question : Directions: Introducing a lady, a lady said, "She is the only daughter of Mohan's grandfather who is my husband's father". How does the lady relate herself to the introduced lady?
Option 1: Aunt
Option 2: Mother
Option 3: Mother-in-law
Option 4: Sister-in-law
Correct Answer: Sister-in-law
Solution : As per the given information, the family tree will be as follows –
Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
So, from the above family tree, the lady is the sister-in-law of the introduced lady. Hence,
Question : A businessman's earnings increased by 25% in one year but decreased by 4% in the next. Going by this pattern, after 5 years, his total earnings would be Rs. 72,000. What is his present income?
Option 1: Rs. 10,000
Option 2: Rs. 80,000
Option 3: Rs. 40,000
Option 4: Rs. 54,000
Correct Answer: Rs. 40,000
Solution : Let the present income be Rs. $x$ According to the question, $x × 1.25 × 0.96 × 1.25 × 0.96 × 1.25 = 72000$ ⇒ $x = \frac{72000}{1.25 × 0.96 × 1.25 × 0.96 × 1.25}$ ⇒ $x = \frac{72000}{1.2 × 1.2 × 1.25}$
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