Correct Answer: 87.5%

Solution : Given: The cost price is INR 20 per kg.
The selling price is INR 30 per kg.
So, the profit percentage if he sold 1 kg $=\frac{10}{20}\times 100 = 50$%
Now, the gain as a result of the incorrect weight:
$=\frac{\text{Error}}{\text{True weight – Error}}\times 100$
$=\frac{200}{1000 – 200}\times 100$
$=\frac{200}{800}\times 100$
$= 25$%
The actual profit percentage:
$=P_{1}+P_{2}+\frac{P_{1}\times P_{2}}{100}$
$=50 + 25 + \frac{50\times 25}{100}$
$=75 + 12.5$
$=87.5$%
Hence, the correct answer is 87.5%.

Correct Answer: Shri Sreedharan

Solution : The correct option is - Shri Sreedharan

Elattuvalapil Sreedharan is an Indian engineer and politician best known for overseeing the Delhi Metro and the Konkan Railway. In charge of the Delhi Metro Rail Corporation (DMRC) from 1995 to 2012, he served as managing director. He is referred to as the Metro Man.

Correct Answer: 15th August, 1947

Solution : The correct option is - 15th August, 1947

India attained Dominion Status on August 15, 1947. This status marked India's transition from being a colony under British rule to a self-governing, independent nation within the British Commonwealth. The Indian Independence Act of 1947, passed by the British Parliament, provided the legal framework for this transition. This act granted India the status of a dominion, which meant that it had full control over its domestic and foreign affairs, except in areas where it chose to remain associated with the British Crown. On that day, India's first Prime Minister, Jawaharlal Nehru, raised the Indian flag above the Lahori Gate of the Red Fort in Delhi, marking the birth of independent India.

Correct Answer: Mahatma Gandhi

Solution : The correct option is Mahatma Gandhi.

During the Quit India Movement in 1942, Mahatma Gandhi encouraged people with the powerful slogan "Do or Die". This movement was an important step in India's fight for independence from British rule. Gandhi urged Indians to use non-violent means and take strong action to achieve freedom, even if it meant facing serious challenges.

Correct Answer: chloroform

Solution : The correct option is chloroform.

Chloroform is the most popular term for trichloromethane, which is also known as formyl trichloride and methane trichloride. A member of the class of volatile organic compounds (VOC), trichloromethane is a chlorinated organic chemical. It is an odourless, colourless liquid that is very flammable.

Correct Answer: 104

Solution : Given:
MADRAS is written as 112 and JAMMU is written as 82.

Add the reverse position values of the letters of the word MADRAS then add the total number of letters in the word to obtain the required code –
M→14; A→26; D→23; R→9; A→26; S→8
Now, add the reverse position values of the word MADRAS then add the total number of letters in the word –
14 + 26 + 23 + 9 + 26 + 8 = 106 + 6 = 112
Thus, MADRAS is coded as 112.
And, JAMMU is written as 82 –
J→17; A→26; M→14; M→14; U→6
Now, add the reverse position values of the word JAMMU then add the total number of letters in the word –
17 + 26 + 14 + 14 + 6 = 77 + 5 = 82
Thus, JAMMU is coded as 82.
Similarly, follow the same pattern for PUNJAB – 
P→11; U→6; N→13; J→17; A→26; B→25
Now, add the reverse position values of the word PUNJAB then add the total number of letters in the word –
11 + 6 + 13 + 17 + 26 + 25 = 98 + 6 = 104

So, PUNJAB is coded as 104. Hence, the second option is correct.

Correct Answer: 50 km

Solution :
By Pythagoras theorem,
$(AC)^2 = (AB)^2+(BC)^2$
⇒ $(AC)^2=(14)^2 + (48)^2$
⇒ $(AC)^2 = 196+ 2304$
⇒ $AC = \sqrt{2500}$
⇒ $AC = 50\ \mathrm{km}$
Hence, the correct answer is 50 km.

Correct Answer: CDAB

Solution : The correct answer is the second option: CDAB.

To arrange the sentences in a meaningful and coherent paragraph, consider the logical flow of events. Here's the correct order:

• C. Giving soothes an individual with the vibration of joy.
• D. Unconditional giving is a natural principle and is evident everywhere in nature, which gives us solids, liquids, and minerals.
• A. Water gives itself away for our agriculture and other uses.
• B. Trees give flowers, fruits, and wood.

The statement (C) discusses the purpose of the subject, which is followed by statement (D) defining the subject broadly. It is further followed by statement (A) mentioning the example of the subject, that is stated. Finally, the paragraph concludes with statement (B) giving more examples to support the purpose of the subject. 

Correct Answer: 2011

Solution : The correct option is 2011.

The slogan 'Our Census, Our Future' was associated with the 15th Census of India, conducted in the year 2011. This census was significant as it aimed to collect comprehensive data on various aspects of the population, including demographic, social, and economic information.

Correct Answer: B. R. Ambedkar

Solution : The correct option is B. R. Ambedkar.

B. R. Ambedkar, an Indian leader and scholar, published 'The Buddha and His Dhamma', a study on the Buddha and Buddhism, as his final publication. The book is revered by Indian Buddhists as a sacred book. After Ambedkar's death on December 6, 1956, it was first published in 1957.