Correct Answer: 1.6 km

Solution : Time taken in running 24 metres = time taken by bus in covering 72 metres
Time = $\frac{\text{distance}}{\text{speed}}$
⇒ $\frac{d_1}{\text{speed of krish}} = \frac{d_2}{\text{speed of bus}}$
⇒ $\frac{\text{speed of bus}}{\text{speed of krish}} = \frac{d_2}{d_1}$ -----------(i)
⇒ $\frac{\text{speed of bus}}{\text{speed of krish}} = \frac{72}{24} =

Correct Answer: 31 : 63 

Solution : Let's check the options –
First option: 13 : 25; (13 × 2) – 1 = 26 – 1 = 25
Second option: 31 : 63; (31 × 2) – 1 = 62 – 1 = 61 ≠ 63
Third option: 21 :

Correct Answer: (3)

Solution : The error lies in the third part because ''I'' should be replaced with ''me'' to convey the intended meaning that except for Raman and the speaker, all individuals were present at the seminar.

The use of ''except'' in this context introduces an object,

Correct Answer: Oxygen

Solution : The correct answer is Oxygen.

Oxygen gas helps in burning. In a combustion reaction, a substance reacts with oxygen gas and releases energy in the form of heat and light. It is an exothermic reaction. If the supply of oxygen stops, the combustion reaction

Correct Answer: Souvenir

Solution : The correct choice is the third option.

In this context, the group of words refers to a tangible item kept as a reminder, and "souvenir" is a noun that precisely fits this description. A souvenir is typically an item collected or purchased during a memorable

Correct Answer: smelting

Solution : The correct answer is smelting.

Smelting is the process of extracting metals from their ores by heating them over their melting point. The molten mixture is then purified and processed further to produce steel. This covers the extraction of iron from iron ore, copper

Correct Answer: 60

Solution : Given: The average of D₁ and D₂ is 40.
The sum of D₁ and D₂ = 40 × 2 = 80 ---------------(1)
The average of D₂ and D₃ is 45.
The sum of D₂ and D₃ =

Correct Answer: General J. J. Singh

Solution : The correct answer is General J. J. Singh.

At the army headquarters, General J. J. Singh was a key player in the planning and execution of the Kargil War. He was chosen to lead Arunachal Pradesh as governor after retiring. A Soldier's

Correct Answer: Malik Kafur

Solution : The correct option is Malik Kafur.

Alauddin Khalji's notable slave-general was Malik Kafur. Malik Kafur, a Hindu named Manik, rose through the ranks to become one of Khalji's most trusted commanders. He played a crucial role in Alauddin's military campaigns, including the successful

Correct Answer: 34 years

Solution : Given: The present ages of Vishal and Shekhar are in the ratio of 14 : 17. Six years from now, their ages will be in the ratio of 17 : 20.
Let the present ages of Vishal and Shekhar be $14x$ and $17x$ years