Staff Selection Commission Multi Tasking Staff Exam
Question : A can complete 25% of a work in 10 days. B can complete 40% of the same work in 16 days. In how many days will A and B together complete twice the work mentioned above?
Option 1: 20
Option 2: 40
Option 3: 60
Option 4: 50
Correct Answer: 40
Solution : Time taken by A to complete 25% of a work = 10 days Time taken by A to complete the work = $10×\frac{100}{25}$ = 40 days Part of work done by A in a day = $\frac{1}{40}$ Time taken by B to complete 40% of
Question : Directions: Which answer figure will complete the pattern in the question figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : On comparing the question figure and all the option figures, the following figure will combine and make the complete pattern –
Hence, the third option is correct.
Question : Directions: Select the figure that will come next in the following figure series.
Solution : According to the given figure series – In each figure number of cubes increases by 1 as compared to the previous figure. So, following the above pattern, the required figure will be as follows –
Therefore, the figure given in the fourth option is the required
Question : The length of two parallel sides of a trapezium are 15 metres and 20 metres. If its height is 22 metres, then what is the area of the trapezium?
Option 1: 295 metre2
Option 2: 385 metre2
Option 3: 425 metre2
Option 4: 315 metre2
Correct Answer: 385 metre2
Solution : Given: The length of two parallel sides of a trapezium is 15 metres and 20 metres. Height = 22 metres We know, Area of a trapezium = $\frac{1}{2}$ × Sum of two parallel sides × Distance between the parallel sides ⇒ Area of
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".
I read (1) / a great deal of (2) / books. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (4)
Solution : The fourth option is the correct choice.
There is no error in this sentence. The sentence is in the present tense, stating that the subject reads a great deal of books.
Therefore, the correct answer is no error.
Question : Identify the segment that contains a grammatical error. If there is no error, select 'No Error'. It'd be really cool if you got / on the team, I've never seen you / played badminton, are you good?
Option 1: No Error
Option 2: on the team, I've never seen you
Option 3: played badminton, are you good?
Option 4: It'd be really cool if you got
Correct Answer: played badminton, are you good?
Solution : The correct choice is the third option.
After "seen", the base form of the verb should be used as see is a verb of perception. Using "played" (past tense) is incorrect in this context as the speaker is trying to
Question : A borrows an amount of INR 3,600 from B at a rate of 20% simple interest for 2 years and lends 75% of this amount to C at 20% compound interest for 2 years. A uses the remaining amount for his purpose. Find the total loss incurred by A.
Option 1: INR 928
Option 2: INR 852
Option 3: INR 1,152
Option 4: INR 1,024
Correct Answer: INR 1,152
Solution : Given, Principal borrowed by A from B = INR 3,600 Rate of interest charged by B on loan = 20% per year (simple interest) Time for which A borrowed from B = 2 years A lent 75% of the borrowed amount to C at
Question : Directions: In the following question, select the missing number of the given series. 25, 23, 19, 11, –5, ?
Option 1: –40
Option 2: –30
Option 3: –50
Option 4: –37
Correct Answer: –37
Solution : Given: 25, 23, 19, 11, –5, ?
In the above-given series, subtract twice the difference of the previous two numbers from the next number. 25 – 2 = 23; 23 – (2 × 2) = 23 – 4 = 19; 19 – (4 × 2)
Question : Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
Delhi’s meteorology (1) ______ the quantity of chaff burnt plays a greater role in (2) ______ air quality than the time chosen by farmers in Punjab to start crop burning, a study argues. Crop burning, a traditional practice in Punjab and Haryana of (3) ______ fields of rice chaff to prepare for winter sowing, begins around October and (4) ______ in November, coinciding with the (5) ______ of southwest monsoon.
Select the most appropriate option to fill in the blank number 3.
Option 1: racing
Option 2: raising
Option 3: rising
Option 4: razing
Correct Answer: razing
Solution : The right choice is the fourth option.
The correct word is razing. This term means to completely remove or destroy something, especially by burning or knocking it down. In the context of agriculture. It refers to the practice of burning the remains of
Question : If 20 men can complete a piece of work in 18 days working 5 hours per day, in how many days can 25 men complete it, working 6 hours per day?
Option 1: 10 days
Option 2: 13 days
Option 3: 11 days
Option 4: 12 days
Correct Answer: 12 days
Solution : Amount of work done = Number of workers × Number of days × Number of hours worked per day If 20 men working 5 hours per day can complete the work in 18 days, then the total man-hours required to complete the work =
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