Staff Selection Commission Multi Tasking Staff Exam
Question : The average of 20 numbers is 30 and that of the other 30 numbers is 50. What is the average of all the numbers?
Option 1: 42
Option 2: 47
Option 3: 44
Option 4: 45
Correct Answer: 42
Solution : Total numbers = 20 + 30 = 50 Average = $\frac{(20×30)+(30×50)}{20+30}$ = $\frac{600+1500}{50}$ = $\frac{2100}{50}$ = $42$ Hence, the correct answer is 42.
Question : Fungi can grow on which of the following items?
I. Bread II. Pickles III. Leather IV. Clothes Select the correct option.
Option 1: I and III
Option 2: I and II
Option 3: I, II, III and IV
Option 4: I, II and III
Correct Answer: I, II, III and IV
Solution : The correct answer is I, II, III and IV.
Fungi are versatile organisms that can grow on a variety of substrates, and items such as bread, pickles, leather, and clothes provide suitable conditions for fungal growth under certain circumstances. Fungi,
Question : Fill in the blank with the most appropriate choice. During treatment, patients lay____ on the treatment couch for around 3 hrs.
Option 1: arsine
Option 2: alpine
Option 3: repine
Option 4: supine
Correct Answer: supine
Solution : The fourth option is correct.
Supine means lying on the back with the face upward. In a medical context, it often refers to a position where the back is resting against a surface, which is likely the case on a treatment couch.
The meanings of
Question : Directions: After interchanging which two signs, the value of the given equation will be 11? 32 + 3 – 12 ÷ 18 × 9
Option 1: ÷ and –
Option 2: ÷ and ×
Option 3: + and –
Option 4: × and –
Correct Answer: ÷ and –
Solution : Given: 32 + 3 – 12 ÷ 18 × 9 = 11
Replace the given symbols according to the options one by one with the original symbols in the given equation. First option: ÷ and – Solving the L.H.S. of the equation –
Question : The height of a right circular cone is 24 cm. If the diameter of its base is 36 cm, then what will be the curved surface area of the cone?
Option 1: $1444.6 \; \mathrm{cm^2}$
Option 2: $2400.9\; \mathrm{cm^2}$
Option 3: $1697.14 \; \mathrm{cm^2}$
Option 4: $2144.2\; \mathrm{cm^2}$
Correct Answer: $1697.14 \; \mathrm{cm^2}$
Solution : Given that the diameter of the base is 36 cm. So the radius is 18 cm. Height = 24 cm $l = \sqrt{r^2 + h^2} = \sqrt{(18)^2 + (24)^2}=30\; \text{cm}$ We know, the curved surface area of a cone $=\pi rl$, where $r$
Question : The table given below shows the number of students in 6 different schools.
What is the total number of students in all schools?
Option 1: 1340
Option 2: 1020
Option 3: 1230
Option 4: 1180
Correct Answer: 1230
Solution : The total number of students in all schools = 360 + 180 + 210 + 240 + 90 + 150 = 1230 Hence, the correct answer is 1230.
Question : When N is divided by 6, the remainder is 4. When 2N is divided by 6, the remainder is:
Option 1: 2
Option 2: 0
Option 3: 3
Option 4: 1
Correct Answer: 2
Solution : Dividend = N, Divisor = 6, Remainder = 4, Quotient = Q Dividend = (Divisor × Quotient) + Remainder Case 1: N = (6 × Q) + 4............................(1) Multiply equation (1) by 2 ⇒ 2N = 2(6 × Q) + 8 ⇒ 2N = 12Q
Question : Comprehension: In the following passage, some of the words have been deleted. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
The "Sesame Street" spin off (1)__________ to be the first Russian-language educational TV (2)__________ aimed specifically at preschoolers. The project (3)__________ support from both American and Russian government officials. "If we do not reform our (4)__________, we can hardly hope that we will reform our society," (5)_________ Elena Lenskaya, a director in Russia's Ministry of Education, during a 1992 U.S. congressional hearing on the planned adaptation.
Question: Select the most appropriate option to fill in the blank number. 5
Option 1: told
Option 2: ordered
Option 3: said
Option 4: muted
Correct Answer: said
Solution : The third option is correct.
Said is the best fit here because it indicates the act of speaking, which is what Elena Lenskaya did during the 1992 U.S. congressional hearing. It's a neutral term that accurately represents the action of speaking.
The meanings of the
Question : Which river flows between the Satpuras and the Vindhyas?
Option 1: Godavari
Option 2: Gandak
Option 3: Tapti
Option 4: Narmada
Correct Answer: Narmada
Solution : The correct answer is Narmada.
Satpura, and Vindhya Ranges are mountains in central India in the state of Madhya Pradesh, and Maharashtra. Narmada River flows between Satpura and Vindhya Ranges. Narmada River originates from Amarkantak Hills in the state of Madhya Pradesh, and drains
Question : Directions: In a certain code language, LORD is written as 5409, MODE is written as 4685, LOAD is written as 5047. What is M written in that code language?
Option 1: 5
Option 2: 6
Option 3: 4
Option 4: 7
Correct Answer: 6
Solution : Given: 1. LORD ⇒ 5409 2. MODE ⇒ 4685 3. LOAD ⇒ 5047
By comparing all the above-coded letters, we find that – In words 1 and 2, O and D are common letters and 4 and 5 are common codes. The remaining letters and
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