Staff Selection Commission Multi Tasking Staff Exam
Question : Find the three consecutive numbers such that twice the first, three times the second and four times the third together make 191.
Option 1: 19, 20 and 21
Option 2: 21, 22 and 23
Option 3: 20, 21 and 22
Option 4: 21, 23 and 24
Correct Answer: 20, 21 and 22
Solution : Let the three consecutive numbers be $x, x+1$ and $x+2$. $⇒ 2x + 3(x+1) + 4(x+2) = 191$ $⇒ 2x + 3x + 3 + 4x + 8 = 191$ $⇒ 9x + 11 = 191$ $⇒ 9x = 180$ $⇒ x
Question : A man takes 6 hours to go to a place and come back by walking both ways. He could have saved 2 hours by riding both ways. The distance covered in the whole journey is 20 miles. What is the average speed for the whole journey if he goes by walking and comes back by riding?
Option 1: 8 miles/hr
Option 2: 5 miles/hr
Option 3: 6 miles/hr
Option 4: 4 miles/hr
Correct Answer: 4 miles/hr
Solution : We know, Average speed = $\frac{\text{Total distance}}{\text{Total time}}$ Time has taken on walking both ways at constant speed = 6 hours Time has taken on walking one way at constant speed = $\frac{6}{2}$ = 3 hours He gained 2 hours by riding both ways.
Question : Directions: In a certain code language, SHOE is written as 47. How will HELMET be written in that language?
Option 1: 63
Option 2: 83
Option 3: 68
Option 4: 72
Correct Answer: 63
Solution : Given: SHOE is written as 47.
Add the positional values of the letters of SHOE to obtain the required code. SHOE; S→19; H→8; O→15; E→5; 19 + 8 + 15 + 5 = 47 Thus, SHOE is coded as 47. Similarly, follow the same pattern
Question : A businessman bought an article and sold it at a loss of 5%. If he had bought it for 10% less and sold it for Rs. 33 more, he would have had a profit of 30%. The cost price of the article is:
Option 1: Rs. 330
Option 2: Rs. 155
Option 3: Rs. 150
Option 4: Rs. 300
Correct Answer: Rs. 150
Solution : Here CP denotes cost price and SP denotes selling price. Let CP = Rs. $x$ SP = $x(\frac{100-Loss\%}{100})$ ⇒ SP = $x(\frac{100-5}{100})$ ⇒ SP = $x(\frac{95}{100})$ New CP = $x-\frac{10}{100}x$ ⇒ New CP = $\frac{90}{100}x$ and new SP = $\frac{95}{100}x+33$ Profit = 30% New
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 answer figures, the following figure will combine and make the complete pattern –
Hence, the fourth option is correct.
Question : Directions: In a certain code language, 321 means cold filtered coffee, 653 means very cold day, and 985 means day and night. What is the code for very in the same language?
Option 1: 5
Option 2: 3
Option 3: 9
Option 4: 6
Correct Answer: 6
Solution : Given: (I) 321⇒cold filtered coffee (II) 653⇒very cold day (III) 985⇒day and night
By comparing all the three coded sentences, we find that – In sentences, I and II the common number and word are 3 and cold. In sentences II and III the
Question : In what ratio must tea worth Rs. 10 per kg be mixed with tea worth Rs. 15 per kg, so that the resultant mixture costs Rs. 12 per kg?
Option 1: 3 : 5
Option 2: 2 : 3
Option 3: 3 : 2
Option 4: 2 : 5
Correct Answer: 3 : 2
Solution : Using the rule of alligation, we get, Required ratio = (Higher value – Mean value) : (Mean value – Lower value) = (15 – 12) : (12 – 10) = 3 : 2 Hence, the correct answer is 3 : 2.
Question : Select the most appropriate synonym of the given word. Enervate
Option 1: Devitalize
Option 2: Invigorate
Option 3: Arouse
Option 4: Boost
Correct Answer: Devitalize
Solution : The correct option will be the first option.
"Enervate" means to weaken or deprive of strength and vitality. "Devitalize" carries a similar meaning of taking away energy or strength, making it an appropriate synonym in this context.
The meanings of the
Question : Which of the following causes swine flu?
Option 1: Bacteria
Option 2: Fungi
Option 3: Tapeworm
Option 4: Virus
Correct Answer: Virus
Solution : The correct option is Virus
A kind of influenza virus is the source of the highly contagious respiratory disease known as "swine flu," which primarily affects pigs. This virus, however, can also infect humans. Swine flu symptoms are similar to that of the seasonal flu
Question : Directions: In the following question, you have to identify the correct response from the given premises stated according to the following symbols. If ÷ means –, – means ×, × means +, and + means ÷, then, 20 × 60 ÷ 40 – 20 + 10 = ?
Option 1: 80
Option 2: 60
Option 3: 40
Option 4: 0
Correct Answer: 0
Solution : Given: ÷ means –, – means ×, × means +, and + means ÷. 20 × 60 ÷ 40 – 20 + 10 = ?
On replacing the symbols according to the information provided the equation becomes ⇒ 20 + 60 – 40 × 20
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