Staff Selection Commission Multi Tasking Staff Exam
Question : The pie chart given below shows the number of mobile phones sold by six companies in a year. The total number of mobile phones sold by six companies is 300. Number of mobile phones sold by a particular company is shown as a percentage of total number of mobile phones sold by all these six companies. What is the average number of mobile phones sold by Q and S?
Option 1: 45
Option 2: 60
Option 3: 75
Option 4: 80
Correct Answer: 60
Solution : Total mobile phones sold by six companies = 300 Total mobile phones sold by Q = $\frac{25}{100}\times300=75$ Total mobile phones sold by R = $\frac{15}{100}\times300=45$ Average = $\frac{\text{Total phones sold by Q and R}}{2}=\frac{75+45}{2}=60$ Hence, the correct answer is 60.
Question : Directions: After interchanging which two signs will the value of the given expression be 356? 133 + 49 – 16 ÷ 2 × 34
Option 1: + and –
Option 2: – and ÷
Option 3: × and +
Option 4: ÷ and ×
Correct Answer: + and –
Solution : Given: 133 + 49 – 16 ÷ 2 × 34 = 356
Let's check each option – First Option: + and – On interchanging the mathematical signs, we get – 133 – 49 + 16 ÷ 2 × 34 = 356 On solving
Question : What is the least number of students in a class such that they can make rows of 10,15 and 20 and also the total number of students is a perfect square?
Option 1: 6400
Option 2: 1600
Option 3: 900
Option 4: 1800
Correct Answer: 900
Solution : The prime factorization of the numbers is as follows: ⇒ 10 = 2 × 5 ⇒ 15 = 3 × 5 ⇒ 20 = 22× 5 Least Common Multiple (LCM) of 10, 15, and 20 = 22 × 3 × 5 =
Question : Bhakra Nangal dam is built on which of the following river?
Option 1: Beas
Option 2: Sutlej
Option 3: Chenab
Option 4: Ravi
Correct Answer: Sutlej
Solution : The correct answer is Sutlej.
Bhakra Nangal Dam is a concrete gravity dam built on the Sutlej River in Bilaspur, Himachal Pradesh. It is the largest dam in India, and its construction started in 1948 and was completed in 1963. Sir Chhotu Ram is
Question : Directions: In the following question, a series is given with one letter missing. Choose the correct alternative from the given ones that will complete the series. AC, FH, K?, PR, UW
Option 1: L
Option 2: J
Option 3: M
Option 4: N
Correct Answer: M
Solution : Given: AC, FH, K?, PR, UW
In the above-given series, add 5 to the place value of each letter of the previous term to get the next term. AC→A + 5 = F; C + 5 = H FH→F + 5 = K; H +
Question : Comprehension: In the following passage, some words have been deleted. Fill in the blanks with the help of the alternatives given. Select the most appropriate option for each number.
A loud, echoing crack broke the sleepy (1)__________ like a gunshot; a cat streaked out (2)_________ a parked car and flew out of sight: a shriek, a bellowed oath, and the (3)_________ of breaking (4)_________ came from the Panla's living room, and as (5)________ this was the signal Mansi had been waiting for.
Question: Select the most appropriate option to fill in the blank no. 3.
Option 1: intact
Option 2: sound
Option 3: flawless
Option 4: vibrant
Correct Answer: sound
Solution : The correct choice is the second option.
The context suggests a disruption in the quietness of the place. The phrase sound of breaking refers to the noise associated with something breaking, making "sound" the most suitable option here.
The meanings of the other options are
Question : Directions: Which two signs should be interchanged to make the following equation correct? 18 – 60 ÷ 45 + 6 × 128 = 138
Option 1: + and ×
Option 2: + and ÷
Option 3: × and –
Option 4: – and =
Correct Answer: + and ×
Solution : Given: 18 – 60 ÷ 45 + 6 × 128 = 138
Let's check each option – First Option: + and × On interchanging the mathematical signs, we get – 18 – 60 ÷ 45 × 6 + 128 = 138 L.H.S. =
Question : Directions: Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which conclusions logically follow(s) from the statements. Statements: Some mocks are exams. Some exams are banks. No bank is local. Conclusions: I. Some mocks are local. II. No mock is a local.
Option 1: Neither conclusion I nor II follows
Option 2: Only conclusion I follows
Option 3: Only conclusion II follows
Option 4: Either conclusion I or II follows
Correct Answer: Either conclusion I or II follows
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): Some mocks are local – From the Venn diagram, it is evident that there is no definite relation between mocks
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.
The Small Indian Mongoose, (1) ______ its little round ears, is an (2) ______ hunter and has a long snout-like face and short legs that have sharp claws. It (3) ______ brown or grey-grizzly fur and (4) ______ in abandoned burrows or tunnels. (5) ______ the rat-like appearance, mongooses are not rodents.
Question:
Select the most appropriate option to fill in the blank number 3.
Option 1: has
Option 2: had
Option 3: have
Option 4: having
Correct Answer: has
Solution : The correct choice is the first option.
Has is the correct present tense third-person singular auxiliary verb to be used in the sentence. This sentence conveys that the mongoose has brown or grey-grizzly fur.
Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. (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.) 2 : 6 :: 4 : 60 :: 7 : ?
Option 1: 600
Option 2: 105
Option 3: 201
Option 4: 336
Correct Answer: 336
Solution : Given: 2 : 6 :: 4 : 60 :: 7 : ?
To get the second number, subtract the first number from its cube. Like, 2 : 6→(2)3 – 2 = 8 – 2 = 6 4 : 60→(4)3 – 4 = 64
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