Explanation

Profit = Selling Price - Cost Price

= 540 - 470

= 70

Profit Percentage = (Profit ÷ Cost Price) × 100

= (70 ÷ 470) × 100

= 15 (14.89%)

Explanation

"The sentence is in the present perfect tense, indicating an action that started in the past and continues to the present.

'Have resigned' is the correct phrase to use, showing that seven people left their job."

Explanation

7x - 1 = 4x + 8

Add 1 to both sides:

7x = 4x + 9

Subtract 4x from both sides:

3x = 9

Divide both sides by 3:

x = 3

So, the value of x is 3.

Explanation

Smoke from industries causes Smog.

It is a type of air pollution caused by the interaction of smoke, gases, and other atmospheric pollutants.

Smog is a harmful mixture of smoke, sulfur dioxide, and other pollutants that can cause respiratory problems and other health issues.

Explanation

In the sentence, "not only" and "but also" are correlative conjunctions that connect two clauses or phrases of equal importance.

They are used to show addition or similarity between the two clauses.

• "Not only" is a conjunction phrase that introduces the first clause.
• "But also" is a conjunction phrase that introduces the second clause.

Explanation

We generally use preposition from after different.

My book is different from yours.

Explanation

Explanation

Cabinet Mission was sent to India in February 1946.

They arrived in India on March 24, 1946.

The Cabinet Mission Plan was announced on May 16, 1946.

The plan was created by the Cabinet Mission, which was sent to India by British Prime Minister Clement Attlee to discuss transferring power from the British to the Indians.

The mission's members (3) were Lord Pethick-Lawrence, Sir Stafford Cripps, and A. V. Alexander. 

Explanation

From equation (1), we can write:

2 = 10^0.3010

Now, take log base 2 on both sides:

log2 2 = log2 (10^0.3010)

1 = 0.3010 log2 10

Now, divide both sides by 0.3010:

log2 10 = 1/0.3010

= 100/30.10

= 1000/301

Explanation

Let's say the number of girls is x. Then, the number of boys is 2x (since there are twice as many boys as girls).

Total students = x (girls) + 2x (boys) = 3x

Now, let's calculate the number of students who failed:

Girls who failed = 45% of x = 0.45x

Boys who failed = 30% of 2x = 0.6x

Total students who failed = 0.45x + 0.6x = 1.05x

Now, let's calculate the number of students who passed:

Total students who passed = Total students - Total students who failed

= 3x - 1.05x

= 1.95x

Percentage of students who passed = (1.95x / 3x) × 100%

= 65%