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Staff Selection Commission Multi Tasking Staff Exam

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Question : Directions: Which of the mathematical signs should be interchanged in the below equation to make it mathematically correct?
4 ÷ 32 + 8 × 9 – 5 = 35

Option 1: × and –

Option 2: ÷ and +

Option 3: ÷ and ×

Option 4: × and +

Team Careers360 19th Jan, 2024

Correct Answer: ÷ and +


Solution : Given: 
4 ÷ 32 + 8 × 9 – 5 = 35

After interchanging signs according to the given options.
First option: × and –
Solving the L.H.S. of the equation –
4 ÷ 32 + 8 – 9 × 5 = 35

16 Views

Question : Ajay buys a scooter for Rs. 7560 and spends Rs. 540 on its repair. He sells it for Rs. 9000. What is his gain percentage?

Option 1: 8.33%

Option 2: 9.09%

Option 3: 11.11%

Option 4: 6.25%

Team Careers360 25th Jan, 2024

Correct Answer: 11.11%


Solution : Ajay buys a scooter for Rs. 7560
Spends on repairing = Rs. 540
Total cost price = 7560 + 540 = 8100
Selling price = Rs. 9000
Gain = selling price – cost price = 9000 – 8100 = 900
Gain percentage = $\frac{\text{Selling price

20 Views

Question : The protein present in the finger nail is

Option 1: Actin

Option 2: Myosin

Option 3: Globin

Option 4: Keratin

Team Careers360 25th Jan, 2024

Correct Answer: Keratin


Solution : The correct option is - Keratin

The majority of the cells of the skin's epidermis, nails, and hair are made of the fibrous protein keratin. It also helps with the formation of animal horns and hooves, bird feathers and beaks, and fish scales and crab

14 Views

Question : The third proportional to 4 and 6 is:

Option 1: 9

Option 2: 16

Option 3: 6

Option 4: 36

Team Careers360 17th Jan, 2024

Correct Answer: 9


Solution : The third proportional to $a$ and $b$ = $\frac{b^2}{a}$
The third proportional to 4 and 6 = $\frac{6^2}{4}$
= $\frac{36}{4}$
= 9
Hence, the correct answer is 9.

4 Views

Question : ‘Padma Vibhushan’ winner Pandit Birju Maharaj was a famous _____ dancer.

Option 1: Odissi

Option 2: Kathak

Option 3: Bharatanatyam

Option 4: Manipuri

Team Careers360 24th Jan, 2024

Correct Answer: Kathak


Solution : The correct option is Kathak.

Renowned Indian classical dancer Pandit Birju Maharaj was especially well-known for his proficiency in Kathak, a traditional dance style that has its roots in North India. Exquisite footwork, elegant motions, and emotional narrative through dance are characteristics of Kathak.

194 Views

Question : The average of 7 consecutive odd numbers is A. If the next 3 and the previous 2 odd numbers to these 7 odd numbers are also included, what is the new average of these 12 consecutive odd numbers?

Option 1: A + 1

Option 2: A – 2

Option 3: A + 2

Option 4: A + 3

Team Careers360 25th Jan, 2024

Correct Answer: A + 1


Solution : 7 consecutive odd numbers as $x, x+2,x+4, x+6,x+8, x+10, x+12$.
So, A = $x+6$ (Midterm is the average)
Since the average of 7 consecutive odd numbers is A, so the sum of these numbers is 7A
⇒ The next 3 odd numbers are

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Question : Select the most appropriate option to fill in the blank.
He was a ______ man and had no wish to be rich.

Option 1: poverty

Option 2: poorly

Option 3: poor

Option 4: poorer

Team Careers360 20th Jan, 2024

Correct Answer: poor


Solution : The third option is the correct answer.

"Poor" typically refers to having little or insufficient wealth or material possessions, which aligns with the meaning conveyed in the sentence.

Therefore, the complete sentence is: He was a poor man and had no wish to be rich.

27 Views

Question : In measuring the sides of a rectangle, there is an excess of 5% on one side and a 2% deficit on the other. Then the error percentage in the area is:

Option 1: 3.3%

Option 2: 3.0%

Option 3: 2.9%

Option 4: 2.7%

Team Careers360 23rd Jan, 2024

Correct Answer: 2.9%


Solution : Given: In measuring the sides of a rectangle, there is an excess of 5% on one side and a 2% deficit on the other.
We will use the successive percentage change formula.
$\therefore$ Required percentage = $(5-2-\frac{5×2}{100})=(3-0.1)=2.9$%
Hence, the correct answer is 2.9%.

79 Views

Question : The two adjacent sides of a parallelogram are 12 cm and 5 cm respectively. If one of the diagonals is 13 cm long, then what is the area of the parallelogram?

Option 1: 60 cm2

Option 2: 30 cm2

Option 3: 75 cm2

Option 4: 25 cm2

Team Careers360 22nd Jan, 2024

Correct Answer: 60 cm2


Solution :
In $\triangle$ABC, AB = 12 cm, BC = 5 cm and AC = 13 cm
The semiperimeter ($s$) = $\frac{12+5+13}{2}$ = 15 cm
So, the area of $\triangle$ABC
= $\sqrt{15(15-13)(15-12)(15-5)}$
= $\sqrt{15×2×3×10}$
= 30 cm2
Now, the area of the parallelogram ABCD

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