It's a Question of your Career!

Correct Answer: It contains the maximum content of water vapour.

Solution : The correct option is It contains the maximum content of water vapour.

Nitrogen makes up 78% of the gas in the air, oxygen 21%, followed by argon and carbon dioxide in trace amounts. Water vapour is present in the air in varying amounts, along with dust particles. At a specific pressure and temperature, the air is considered to be saturated when it contains the maximum amount of water vapour. It is found that the relative humidity is 100% in such a condition.

Correct Answer: Rs. 2000

Solution : Let the sum be $\text{P}$ for both cases.
Time = 5 years and 4 years.
Difference = 150
According to the question:
By using the formula of Simple Interest: SI = $\frac{\text{P×R×T}}{100}$ where $P$ is principal, $T$ is time in years and $R$ is the rate of interest per annum.
$\frac{\text{P×7.5×5}}{100}-\frac{\text{P×7.5×4}}{100}$ = 150
⇒ $\frac{\text{7.5P}}{100}$ = 150
⇒ $\text{P}$ = Rs. 2000
Hence, the correct answer is Rs. 2000.

Correct Answer:

Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of all the option figures, the given question figure is embedded only in the third option figure.

Hence, the third option is correct.

Correct Answer:

Solution : Since the rotation is restricted. So, the embedded figure will have the same orientation as the main figure. By comparison of all the option figures, only the second option figure is embedded in the given question figure.

Hence, the second option is correct.

Correct Answer: Where have you hidden those important documents?

Solution : The third option is correct.

The active voice is a type of sentence or clause in which the subject performs the action. It's a more direct and straightforward way of expressing ideas. In an active sentence, the subject is the doer of the action, and the object is the receiver of the action.

The structure of the sentence in active voice in an interrogative sentence is: "Wh word + have + subject + past participle form of the verb + object?"

Therefore, the correct answer is: "Where have you hidden those important documents?"

Correct Answer: Only (i) and (iii)

Solution :
Given: In $\triangle PQR, PQ=QR$ and $O$ is an interior point of $\triangle PQR$ such that $\angle OPR=\angle ORP$.
Since $PQ = QR$, so $\triangle PQR$ is an isosceles triangle.
From the given data we cannot say that $O$ is the centroid of the $\triangle PQR$.
Also, $PQ=QR, OP=OR$ and $OQ=OQ$
So, $\triangle PQO$ and $\triangle RQO$ are congruent.
Hence, the correct answer is Only (i) and (iii).

Correct Answer: 100%

Solution : The foreign exchange reserves in 1997–1998 were $5040$ million, as seen in the bar graph.
2520 million was the amount of foreign exchange reserves in 1993–94.
Change in the number of reserves = $5040 - 2520= 2520$
Percentage increase = $\frac{\text{Difference}}{\text{The foreign exchange reserves in 1993–1994}} \times 100$.
= $\frac{2520}{2520}\times 100=100$%
Hence, the correct answer is 100%.

Correct Answer: Friday

Solution : Given:
The 20th of March 2001 is Tuesday.

Number of days from 21st of March 2001 to 20th of March 2021 –
365 × 20 = 7300; add 5 days for leap years (2004, 2008, 2012, 2016, and 2020) = 7300 + 5 = 7305
Number of days from 21st of March 2021 to 23rd of April 2021 –
March = 11; April = 23
Total number of days: 7305 + 11 + 23 = 7339
The remainder after dividing 7339 by 7 is 3. 
Tuesday + 3 days = Friday

So, the 23rd of April 2021 will be Friday. Hence, the first option is correct.

Correct Answer: 9 : 13

Solution : Total number of toys sold by shops A, B, and C in the first week = 20 + 40 + 30 = 90
Total number of toys sold by shops C, D, and E in the second week = 20 + 60 + 50 = 130
Ratio = 90 : 130 = 9 : 13
Hence, the correct answer is 9 : 13.

Correct Answer: 1531

Solution : Given:

In the above-given series, add 288 and 292 alternately to get the required missing number –
663 + 288 = 951, 951 + 292 = 1243, 1243 + 288 = 1531, 1531 + 292 = 1823

So, the required missing number is 1531. Hence, the second option is correct.