Staff Selection Commission Combined Graduate Level Exam
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No Error".
How long it takes (1) / to travel from Chennai to Trichy (2) / by train? (3) No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The error lies in the first part of the sentence.
The structure of the interrogative sentence here, with respect to "wh-" words is as follows: "How long + does + singular subject + base form of the verb (V1) + object?" This structure is used
Question : The disconnected lines drawn on a map for showing slope
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : The correct answer is Hachure.
Hachures are short, discontinuous lines on a map that show the slope of the ground surface. Hachures are an older type of relief representation. They indicate slope orientation and provide a general impression of steepness through their thickness and overall density.
Question : Which one of the following pair is not correctly matched?
Option 1: Harshvardhan-Hiuen Tsang
Option 2: Akbar-Todarmal
Option 3: Chanakya-Chandragupta
Option 4: Vikramaditya-Chaitanya
Correct Answer: Vikramaditya-Chaitanya
Solution : The Correct Ansswer is Vikramaditya-Chaitanya
Chaitanya was a 16th century Indian Hindu monk and social reformer who founded Gaudiya Vaishnavism, a Vaishnava religious sect. Vikramaditya was a mythical first-century BC Indian ruler known for his knowledge, courage, and magnanimity.King Vikramaditya established Ujjain as his capital
Question : Directions: In the following question, a sentence is given with a blank that is to be filled in with an appropriate word. Four alternatives are suggested; choose the correct alternative out of them as your answer. The relation between the Indian P.M. and the U.S. President is perfectly ____.
Option 1: excellent
Option 2: smooth
Option 3: informed
Option 4: cordial
Correct Answer: cordial
Solution : The correct choice is the fourth option.
Explanation: Cordial is the most suitable word in the context of the sentence, which means friendly, warm, and sincere in a polite way. It accurately describes a positive and amicable relationship between the Indian Prime Minister and
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the given set. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 - operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (36, 21, 35) (43, 19, 53)
Option 1: (51, 34, 39)
Option 2: (48, 37, 25)
Option 3: (44, 20, 54)
Option 4: (35, 22, 34)
Correct Answer: (51, 34, 39)
Solution : Given: (36, 21, 35); (43, 19, 53)
Subtract the second number from the first number and then multiply the resultant by 2. Add 5 to the number obtained to get the third number – (36, 21, 35)→{(36 – 21) × 2} + 5
Question : Sudhin cycled at 8.5 km/hr for 4 hours, then took an auto and travelled at 20 km/hr for 1.5 hours and then walked at 4 km/hr for y hours. If Sudhin's overall average speed for the entire journey was 10 km/hr, what is the value of y?
Option 1: 2
Option 2: 1.25
Option 3: 1.5
Option 4: 1.75
Correct Answer: 1.5
Solution : Distance travelled by Sudhin cycling at 8.5 km/h for 4 hours = 8.5 × 4 = 34 km Distance travelled by Sudhin in an auto at 20 km/h for 1.5 hours = 20 × 1.5 = 30 km Distance travelled by Sudhin walking at 4
Question : What is the value of $\sin 28° \sin 35° \sin 45° \sec 62° \sec 55°$?
Option 1: $2$
Option 2: $\frac{1}{\sqrt{2}}$
Option 3: $\sqrt{2}$
Option 4: $\frac{1}2$
Correct Answer: $\frac{1}{\sqrt{2}}$
Solution : Given expression is $\sin 28° \sin 35° \sin 45° \sec 62° \sec 55°$. We know, $\sin \theta = \cos(90°-\theta)$ So, $\sin 28° = \cos(90° - 28°)$ = $\cos 62°$ Also, $\sin 35° = \cos(90° - 35°)$ = $\cos 55°$ Substituting these values in the given
Question : The mean proportion of 169 and 144 is:
Option 1: 156
Option 2: 147
Option 3: 126
Option 4: 165
Correct Answer: 156
Solution : Mean proportion of $a$ and $b$ is $\sqrt{ab}$. So, the Mean proportion of 169 and 144 $=\sqrt{169\times 144}=156$ Hence, the correct answer is 156.
Question : Direction: The table below shows the distribution of the number of people living in eight different countries and the per capita income of each of the countries. The total population of these countries taken together is 200 crore. Per capita income is calculated by dividing the country's total GDP by its population.
What is the total GDP (in crore dollars) of country 5?
Option 1: 27,120
Option 2: 31,640
Option 3: 38,280
Option 4: 44,660
Correct Answer: 31,640
Solution : The population of Country 5 is 7% of the total population. ⇒ Population of country 5 = $\frac{7}{100} × 200 = 14$ crore Also, it is given that Per capita income is calculated by dividing the country's total GDP by its population. i.e., Per capita
Question : Pipe A can fill an empty tank in 6 hours and pipe B, in 8 hours. If both pipes are opened and after 2 hours, pipe A is closed, how much time will B take to fill the remaining tank?
Option 1: $7\frac{1}{2}$ hours
Option 2: $2\frac{2}{5}$ hours
Option 3: $2\frac{1}{3}$ hours
Option 4: $3\frac{1}{3}$ hours
Correct Answer: $3\frac{1}{3}$ hours
Solution : Given: Pipe A can fill an empty tank in 6 hours and pipe B, in 8 hours. So, in 1 hour, pipe A can fill $\frac{1}{6}$ part and pipe B can fill $\frac{1}{8}$ part of the tank separately. In 1 hour, both pipes together
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