Staff Selection Commission Multi Tasking Staff Exam
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at line AB as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear close to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the bottom side of the figure (on Line AB). So, the top side of the reflected image will appear
Question : The pie chart given below shows the production of 6 different factories. The total production of all these 6 factories is 17000. The production of a particular factory is shown as a percentage of the total production of all these 6 factories. Which of the following statements is NOT correct? I. The ratio of the production of P and R together to the production of Q and U together is 49 : 46. II. The production of S and T together is 91.66% more than the production of P and Q together.
Option 1: Neither I nor II
Option 2: Only I
Option 3: Both I and II
Option 4: Only II
Correct Answer: Only II
Solution : I. Production of P and R = 19 + 30 = 49 Production of Q and U = 41 + 5 = 46 $\therefore$ Respective ratio = 49 : 46 Given ratio = 49 : 46 $\therefore$ This statement is correct. II. Production of
Question : Which vitamin is soluble in water?
Option 1: Vitamin D
Option 2: Vitamin E
Option 3: Vitamin A
Option 4: Vitamin C
Correct Answer: Vitamin C
Solution : The correct answer is Vitamin C.
Ascorbic acid, another name for vitamin C, is a water-soluble vitamin. It is necessary for the production of neurotransmitters, collagen, and L-carnitine. It can also be purchased as a dietary supplement and used as an ingredient in
Question : What is the value of $\frac{1}{7} \times \frac{1}{8} \div \frac{72}{51}$ of $(\frac{1}{9}+\frac{1}{8})+(\frac{63}{56} \times \frac{48}{72})$?
Option 1: $\frac{21}{56}$
Option 2: $\frac{19}{56}$
Option 3: $\frac{45}{56}$
Option 4: $\frac{15}{56}$
Correct Answer: $\frac{45}{56}$
Solution : $\frac{1}{7} \times \frac{1}{8} \div \frac{72}{51}$ of $(\frac{1}{9}+\frac{1}{8})+(\frac{63}{56} \times \frac{48}{72})$ $=\frac{1}{7} \times \frac{1}{8} \div \frac{72}{51}$ of $(\frac{9+8}{72})+\frac{3}{4}$ $=\frac{1}{7} \times \frac{1}{8} \div \frac{72}{51}$ of $\frac{17}{72}+\frac{3}{4}$ $= \frac{1}{7} \times \frac{1}{8} \div \frac{1}{3}+\frac{3}{4}$ $=\frac{1}{7} \times \frac{3}{8}+\frac{3}{4}$ $=\frac{3}{56}+\frac{3}{4}$ $=\frac{3+42}{56}$ $=\frac{45}{56}$ Hence, the correct answer is $\frac{45}{56}$.
Question : Directions: Select the option that is related to the third letter cluster in the same way as the second letter cluster is related to the first letter cluster. DAK : FCM :: PVH : ?
Option 1: RJZ
Option 2: SXJ
Option 3: RXJ
Option 4: RXI
Correct Answer: RXJ
Solution : Given: DAK : FCM :: PVH : ?
Add 2 to the place value of each letter of the first term, to obtain the required missing term – DAK : FCM→D + 2 = F; A + 2 = C; K + 2 = M
Question : The Earth is a:
Option 1: good reflector of heat
Option 2: non-absorber of heat
Option 3: good absorber and good radiator of heat
Option 4: bad absorber and bad radiator of heat
Correct Answer: good absorber and good radiator of heat
Solution : The correct option is a good absorber and a good radiator of heat.
The earth is a good heat absorber and radiator. This property is critical to the planet's climate and temperature regulation. The Earth mostly absorbs heat
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".
When I went there (1) / Charles is playing (2) / a game of chess. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
The tense should be consistent throughout the sentence. Thus, the verb "is" should be replaced with "was" to make the sentence grammatically accurate since the sentence is in the past tense as indicated by the
Question : The speed of a superfast train, T1 is 20% more than the speed of another superfast train T2. Both the trains start from point N at the same time and reach point M at the same time. N and M are 500 km apart. T1 stops for 10 minutes on the way to M, but T2 covers the distance without any stops during the entire route. What is the speed of T1?
Option 1: 600 km/hr
Option 2: 500 km/hr
Option 3: 650 km/hr
Option 4: 550 km/hr
Correct Answer: 600 km/hr
Solution : Distance covered = speed × time taken Let the speed of train T2 be $v$ and the speed of train T1 be $1.2v$. Let time taken for train T2 be $t$ and the time taken for train T1 be ($t
Question : Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct. After recess, the students returns to their desks.
Option 1: returned to there
Option 2: returns to there
Option 3: returned to their
Option 4: No improvement
Correct Answer: returned to their
Solution : The correct choice is the third option.
Explanation: In the original sentence, "returns" is not grammatically correct because it does not agree with the plural subject "students". The correct version, "returned to their", ensures proper agreement by using the plural form
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.) 12 : 8 :: 28 : 16 :: 6 : ?
Option 1: 2
Option 2: 3
Option 3: 5
Option 4: 6
Correct Answer: 5
Solution : Given: 12 : 8 :: 28 : 16 :: 6 : ?
Divide the first number by 2 and add 2 to obtain the next number. 12 : 8→(12 ÷ 2) + 2 = 6 + 2 = 8 28 : 16→(28 ÷ 2) +
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