Staff Selection Commission Multi Tasking Staff Exam
Question : The following table shows the number of trucks of 6 different brands sold from a showroom during a given period of time.
There are 8 tyres on each truck, irrespective of the brand of the truck. What is the average number of tyres per brand?
Option 1: 280
Option 2: 300
Option 3: 260
Option 4: 240
Correct Answer: 280
Solution : Average = $\frac{\text{Sum of Observations}}{\text{Number of Observations}}$ Average = $\frac{8 \times {(45+35+36+44+28+22)}}{6}$ = 280 $\therefore$ The average number of tyres per brand is 280. Hence, the correct answer is 280.
Question : Who wrote "Ain - i - Akbari" the great historical work ?
Option 1: Abul Fazal
Option 2: Amir Khusrau
Option 3: Firoz Shah
Option 4: Abdul Rashid
Correct Answer: Abul Fazal
Solution : Correct Answer is Abul Fazl
Abul Fazl was the younger brother of Faizi, a well-known poet in the court of Akbar, and the son of Sheik Mubarak, a renowned Sufi from Persia. The Ain-i-Akbari, also known as the "Administration of Akbar," was written in
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 of the given conclusions logically follow(s) from the statements. Statements: I. Some X are B. II. Some Y are X. Conclusions: I. Some B are Y. II. Some B are X. III. Some X are Y.
Option 1: Only conclusions II and III follow
Option 2: Only conclusion II follows
Option 3: Only conclusion III follows
Option 4: Only conclusions I and II follow
Correct Answer: Only conclusions II and III follow
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions – Conclusion (I): Some B are Y – From the Venn diagram, it is evident that there is no definite relation between B
Question : Limestone is a type of______.
Option 1: sedimentary rock
Option 2: metamorphic rock
Option 3: igneous rock
Option 4: volcanic rock
Correct Answer: sedimentary rock
Solution : The correct answer is sedimentary rock.
Limestone is a type of sedimentary rock. It is composed of the mineral calcite (calcium carbonate) and often contains fossils, shells and other organic remains. Sedimentary rocks like limestone form over time through the accumulation and compaction
Question : Which of the following is a dance form of Maharashtra?
Option 1: Bhangra
Option 2: Jhumar
Option 3: Kathak
Option 4: Lavani
Correct Answer: Lavani
Solution : The correct option is Lavani.
Lavani is a traditional dance form of Maharashtra, India, characterised by energetic and rhythmic movements. It combines elements of song and dance and is often performed by women in vibrant costumes.
Question : Select the appropriate antonym for the underlined word.
Our children need vital lessons in wealth management.
Option 1: clever
Option 2: superfluous
Option 3: organic
Option 4: healthy
Correct Answer: superfluous
Solution : The correct choice is the second option.
Explanation:
Vital means essential or crucial, indicating the utmost importance of something. Superfluous means unnecessary or exceeding what is sufficient or required, making it the suitable antonym in this context.
The meanings of the other options are as
Question : Directions: By interchanging the given two signs ÷ and –, which of the following equations will be correct? I. 143 + 6 × 18 ÷ 45 – 3 = 236 II. 133 – 7 + 16 × 11 ÷ 37 = 158
Option 1: Both I and II
Option 2: Only I
Option 3: Only II
Option 4: Neither I nor II
Correct Answer: Both I and II
Solution : Given: I. 143 + 6 × 18 ÷ 45 – 3 = 236 II. 133 – 7 + 16 × 11 ÷ 37 = 158
Equation I. 143 + 6 × 18 ÷ 45 – 3 = 236 On interchanging the mathematical
Question : A wholesaler marks his goods at 35% above the cost price but allows a discount of 15% at the time of sale. His gain is:
Option 1: 20.45%
Option 2: 24.85%
Option 3: 14.75%
Option 4: 25.50%
Correct Answer: 14.75%
Solution : Let the cost price be 100. So, marked price = 100 + 35 = 135 He gives a discount of 15% on the marked price. So, selling price $=\frac{100-15}{100}×135=114.75$ $\therefore$ Gain percentage $=\frac{114.75-100}{100}×100=14.75\%$ Hence, the correct answer is 14.75%.
Question : Pipe P alone can fill a tank in 18 hours and Pipe Q alone can fill the same tank in 24 hours. If both the pipes are opened on alternate hours one at a time and pipe Q is opened for the first hour, then in how much time the tank will be full?
Option 1: $\frac{64}{5}$ hours
Option 2: $\frac{78}{5}$ hours
Option 3: $20$ hours
Option 4: $\frac{62}{3}$ hours
Correct Answer: $\frac{62}{3}$ hours
Solution : According to the question, Pipe P fills the tank in 18 hours, so its rate = $\frac{1}{18}$ per hour Pipe Q fill tank in 24 hours, so its rate = $\frac{1}{24}$ per hour ⇒ Combined rate $=\frac{1}{24} + \frac{1}{18} = \frac{7}{72}$ So, in 2
Question : A periscope works on the principle of:
Option 1: refraction
Option 2: total internal reflection
Option 3: diffraction
Option 4: reflection
Correct Answer: reflection
Solution : The correct answer is reflection.
A periscope operates according to the law of reflection, which dictates that light from an object falls on one mirror at a 45° angle and is reflected. This reflected light then strikes another mirror and is reflected once again
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