Explanation

• The Indian Ocean is the third largest ocean in the world.
• It covers about 70 million square kilometers of Earth's surface.
• It lies between Africa, Asia, Australia, and Antarctica.
• It is named after India, because India lies at its northern boundary.

Additional information:

1. Pacific Ocean – Largest ocean (~165 million km²)
2. Atlantic Ocean – Second largest (~106 million km²)
3. Indian Ocean – Third largest (~70 million km²)
4. Southern Ocean – Fourth largest
5. Arctic Ocean – Smallest ocean

Last verified on 06-03-2026

Explanation

• Asia is the largest continent by land area and population.
  • It covers about 44.58 million sq km.
  • Around 60% of the world’s population lives in Asia.
  • It has 40+ countries, including China, India, and Indonesia.
  • It makes up about 30% of Earth’s land area.

Last verified on 07-02-2026

Explanation

Cost Price = Rs. 8000

Gain = 25%

Selling Price = 8000 + (25% of 8000)

= 8000 + (0.25 × 8000)

= 8000 + 2000

= 10000

Last verified on 06-03-2026

Explanation

Total age of 7 persons = 7 × 30 = 210 years

Total age of 5 persons = 5 × 32 = 160 years

Total age of remaining 2 persons = 210 - 160 = 50 years

Average of 2 persons = 50/2 = 25 years

Last verified on 06-03-2026

Explanation

11% = 0.11

2/11 ≈ 0.182

1/4 = 0.25

0.27

Least is 11% = 0.11

Last verified on 06-03-2026

Explanation

Given:

3x + y = 10 ...(i)

x - 4y = -1 ...(ii)

From (ii):

x = -1 + 4y ...(iii)

Put (iii) in (i):

3(-1 + 4y) + y = 10

-3 + 12y + y = 10

13y = 13

y = 1

Last verified on 06-03-2026

Explanation

Factors of:

54 = 2 × 3^3

288 = 2^5 × 3^2

360 = 2^3 × 3^2 × 5

Common factors: 2 × 3^2 = 2 × 9 = 18

Last verified on 06-03-2026

Explanation

Question 

solution:

Last verified on 06-03-2026

Explanation

Explanation