All Questions

Staff Selection Commission Combined Higher Secondary Level Exam

Follow
Showing 3681 - 3690 out of 10146 Questions
13 Views

Question : The total number of prime factors in $4^{10}\times 7^{3}\times 16^{2}\times11\times 10^{2}$ is:

Option 1: 34

Option 2: 35

Option 3: 36

Option 4: 37

Team Careers360 18th Jan, 2024

Correct Answer: 36


Solution : Given:
$4^{10}\times7^{3}\times16^{2}\times11\times10^{2}$
Rewrite this equation with the prime factors.
$(2^{2})^{10}\times7^{3}\times(2^{4})^{2}\times11\times2^{2}\times5^{2}$
= $2^{20+8+2}\times7^{3}\times11^{1}\times5^{2}$
= $2^{30}\times7^{3}\times11^{1}\times5^{2}$
Total number of prime factors = 30 + 3 + 1 + 2 = 36
Hence, the correct answer is 36.

43 Views

Question : If three angles of a triangle are (2y + 40°), (5y – 60°), and (3y – 80°). Then what is the value of y?

Option 1: 30°

Option 2: 24°

Option 3: 28°

Option 4: 26°

Team Careers360 20th Jan, 2024

Correct Answer: 28°


Solution : Given: Three angles of a triangle are (2y + 40°), (5y – 60°), and (3y – 80°).
We know that the sum of all three angles of a triangle is 180°.
Then, (2y + 40°) + (5y – 60°) + (3y – 80°) = 180°

10 Views

Question : If $p^{3}+3p^{2}+3p=7$, then the value of $p^2+2p$ is:

Option 1: 4

Option 2: 3

Option 3: 5

Option 4: 6

Team Careers360 17th Jan, 2024

Correct Answer: 3


Solution : Given that:
$p^3 + 3p^2 + 3p = 7$
Adding unity to both sides,
$p^3 + 3p^2 + 3p + 1 = 7 + 1$
⇒ $(p+1)^3 = (2)^3$
⇒ $p+1=2$
⇒ $p = 1$
$\therefore p^2 + 2p = 1 + 2 \times 1

15 Views

Question : Directions: Select the correct mirror image of the given figure when the minor is placed at MN as shown below.

Option 1:

Option 2:

Option 3:

Option 4:

Team Careers360 18th Jan, 2024

Correct Answer:


Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection.
Here, according to the information provided, the mirror is placed on the right side of the figure (on line MN). So, the left side of the reflected image will appear

12 Views

Question : Find the radius of the circle $x^2+y^2=25$.

Option 1: 25 units

Option 2: 5 units

Option 3: 2 units

Option 4: 12 units

Team Careers360 24th Jan, 2024

Correct Answer: 5 units


Solution : Equation of a circle with centre (0,0): $x^2+y^2=r^2$ where $r$ is the radius of the circle.
The radius of the circle $x^2+y^2=25$
⇒ $r=\sqrt{25}$ = 5 units
Hence, the correct answer is 5 units.

11 Views

Question : Minorities Rights Day is observed in India on:

Option 1: 23rd December

Option 2: 5th September

Option 3: 1st December

Option 4: 18th December

Team Careers360 19th Jan, 2024

Correct Answer: 18th December


Solution : The correct option is 18th December.

Every year on 18th December, Minorities Rights Day is observed in India to promote the rights of minority populations. This day also emphasises improving understanding of and educating the public on matters about minorities and their protection.

17 Views

Question : Which of the following statements is correct regarding the features of a perfectly competitive market?
I. The market consists of a large number of buyers and sellers.
II. Information is perfect.

Option 1: Only I

Option 2: Neither I nor II

Option 3: Both I and II

Option 4: Only II

Team Careers360 20th Jan, 2024

Correct Answer: Both I and II


Solution : The correct answer is Both I and II.

In a perfectly competitive market, there are many sellers, and there is easy entry and exit of firms and homogeneous products. In a competitive market, no single consumer or producer has the

417 Views

Question : Directions: Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term.
20 : 1200 :: 28 : 2352 :: 50 : ?

Option 1: 7250

Option 2: 7500

Option 3: 7000

Option 4: 7550

Team Careers360 18th Jan, 2024

Correct Answer: 7500


Solution : Given:
20 : 1200 :: 28 : 2352 :: 50 : ?

Find the square of the first number and then multiply by 3 to obtain the second number.
Like, (20 : 1200)→(20)× 3 = 400 × 3 = 1200
And, (28 :

10 Views

Question : if $a-b=3$ and $a^3-b^3=117$, then $|a+b|$ is equal to:

Option 1: 3

Option 2: 5

Option 3: 7

Option 4: 9

Team Careers360 22nd Jan, 2024

Correct Answer: 7


Solution : Given:
a – b = 3
a– b3 = 117
We know,
a– b3 = (a – b)+ 3ab(a – b)
⇒ 117 = 27 + 3ab(3)
⇒ 9ab = 117 – 27
⇒ 9ab = 90

154 Views

Question : Directions: Which number from among the given options can replace the question mark (?) in the following series?
8, 11, 22, ?, 50, 53

Option 1: 37

Option 2: 42

Option 3: 35

Option 4: 25

Team Careers360 21st Jan, 2024

Correct Answer: 25


Solution : Given:
8, 11, 22, ?, 50, 53

Add 3, and multiply 2 alternately to the numbers to obtain the next number of the series.
8 + 3 = 11; 11 × 2 = 22; 22 + 3 = 25; 25 × 2 = 50; 50

The question have been saved in answer later, you can access it from your profile anytime. Access now