Staff Selection Commission Multi Tasking Staff Exam
Question : A can do a piece of work alone in 15 days, while B complete the same piece of work alone in 12 days. If they work on it together for 5 days, then the fraction of the work that will be left is:
Option 1: $\frac{3}{4}$
Option 2: $\frac{5}{8}$
Option 3: $\frac{1}{4}$
Option 4: $\frac{5}{7}$
Correct Answer: $\frac{1}{4}$
Solution : Given, A can do a piece of work = 15 days B can do a piece of work = 12 days A and B both work together = 5 days Left work = total work – completed work Let, Total Work = LCM of 15,
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 47, 49, 53, 55, 59, 61, 65, ?
Option 1: 56
Option 2: 76
Option 3: 67
Option 4: 69
Correct Answer: 67
Solution : Given: 47, 49, 53, 55, 59, 61, 65, ?
In the above-given series, add 2 and 4 alternatively to the previous number to get the next number. 47 + 2 = 49, 49 + 4 = 53, 53 + 2 = 55, 55 + 4
Question : Directions: The speeds of seven cars C1, C2, C3, C4, C5, C6, and C7 are compared. All cars have different speeds. The speed of C1 is more than only two cars. The speed of C6 is more than C4 and less than C5. The speeds of C2 and C3 are the highest and the lowest, respectively. The speed of C4 is more than C1. The speed of how many cars is less than C7?
Option 1: 5
Option 2: 2
Option 3: 4
Option 4: 1
Correct Answer: 1
Solution : Given: (I) The speed of C1 is more than only two cars. _ > _ > _ > _ > C1 > _ > _ (II) The speed of C6 is more than C4 and less than C5. C5 > C6 > C4 (III) The
Question : The disease-causing microbes are called _____.
Option 1: toxins
Option 2: pathogens
Option 3: decomposers
Option 4: antibodies
Correct Answer: pathogens
Solution : The correct option is pathogens.
The disease-causing microbes are called "pathogens". These include bacteria, viruses, fungi and parasites that invade the host organism, leading to illness. Understanding and combating pathogens are crucial in the fields of medicine and public health to prevent and treat infectious
Question : Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the option 'no correction required' if the sentence is correct as given.
Christian turned round and (strided off into) the blackness, and I got into my car.
Option 1: strode off
Option 2: strode of
Option 3: strided of
Option 4: No correction required
Correct Answer: strode off
Solution : The correct choice is the first option.
Explanation: The verb "stride" is irregular, and its past tense form is "strode". In the original sentence, the incorrect form "strided" is used. The correct past tense form to describe someone walking with long steps is
Question : In a 64 L mixture, the alcohol and water are in the ratio of 1 : 3 respectively. 32 L of the mixture is taken off and replaced with 16 L of water. What is the new ratio of alcohol and water respectively?
Option 1: 1 : 5
Option 2: 5 : 12
Option 3: 2 : 7
Option 4: 3 : 10
Correct Answer: 1 : 5
Solution : The ratio of alcohol and water = 1 : 3 Let $k$ and $3k$ be the quantity of alcohol and water. ⇒ $k+3k = 64$ ⇒ $4k = 64$ ⇒ $k = 16$ Quantity of alcohol and water = 16 L and 48
Question : Directions: In the following question, a series is given with one number missing. Choose the correct alternative from the ones given that will complete the series. 76, 73, 71, 67, 64, 62, ?
Option 1: 60
Option 2: 57
Option 3: 58
Option 4: 59
Correct Answer: 58
Solution : Given: 76, 73, 71, 67, 64, 62,?
Subtract 3, 2, and 4 alternately from the given terms to obtain the missing term. 76 – 3 = 73; 73 – 2 = 71; 71 – 4 = 67; 67 – 3 = 64; 64 – 2
Question : The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer. His successful as a lawyer / grew so fast that he soon had / enough money to buy a house.
Option 1: No error
Option 2: grew so fast that he soon had
Option 3: enough money to buy a house
Option 4: his successful as a lawyer
Correct Answer: his successful as a lawyer
Solution : The correct choice is the fourth option.
Explanation: The word "successful" is an adjective, but in this context, we need a noun to convey the idea of achievement or accomplishment. Therefore, "success" (a noun) is the correct term to use.
Question : The product method used to calculate the annual value of goods and services produced is also called___________.
Option 1: value added method
Option 2: income method
Option 3: expenditure method
Option 4: depreciation method
Correct Answer: value added method
Solution : The correct answer is the value-added method.
The value-added or output methods are other names for the product method. GDP is computed using the product approach, which adds up the gross value added across all industries (resident sectors) at different production phases.
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.
Many forests are cleared to (1)____ way for palm oil plantations. Palm oil is the most (2) ____produced vegetable oil and is found in half of all supermarket products. It's cheap, versatile and can be added to (3)_____ food and personal products like lipstick and shampoo. (4) _____popularity has (5)______ people to clear tropical forests to grow more palm trees.
Question
Select the most appropriate option to fill in the blank number 2.
Option 1: commonly
Option 2: casually
Option 3: lovingly
Option 4: usually
Correct Answer: commonly
Solution : The right choice is the first option.
Explanation: The word "commonly" is used to convey that palm oil is the most frequently or commonly produced vegetable oil. It indicates that palm oil is widely and regularly produced among various vegetable oils. In the context
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