Correct Answer: 15 hours

Solution : Let the time taken by pipe B to empty the tank = $2x$ hours
Time taken by pipe A to empty the tank = $x$ hours
(A and B) takes half of the time that C takes.
⇒$\frac{2}{\frac{1}{2x}+\frac{1}{x}}=\frac{2}{\frac{1+2}{2x}}$= $\frac{4x}{3}$ hours
Pipes A, B, and

Correct Answer: Cell

Solution : Correct Answer is Cell 

The fundamental building blocks of all living things are cells. When cells and tissues come together, they create organs. When organs and organic systems come together, they create organisms. The basic structural unit of all unicellular and multicellular organisms is the

Correct Answer: Cash flow from financing activities Rs 1,50,000

Solution : Answer = Cash flow from financing activities Rs 1,50,000
Cash flow from financing activities Rs 1,50,000

Correct Answer: Drought

Solution : Option 3 is the correct answer

Drought is a period of low rainfall and dryness, It also refers to shortage of water.

For example:

It is hard to survive in drought prone areas.

Correct Answer: +, –, and 5, 6

Solution : Given:
7 × 6 + 5 – 4 = 33

Let's check the options –
First option: –, ×, and 4, 5
⇒ 7 – 6 + 4 × 5 = 33
On solving the L.H.S. of the equation –
=

Correct Answer: Capital expenditure by central government

Solution : The correct answer is (a) Capital expenditure by the central government.

When the central government provides loans to the state government, it is considered as a capital expenditure because it represents an outflow of funds from the central government's budget. The

Correct Answer: New Delhi

Solution : The correct option is New Delhi.

One of the top institutes for teaching and promoting Kathak dance, an Indian classical dance style, is the National Institute of Kathak Dance, popularly referred to as Kathak Kendra. It is situated in New Delhi. The National

Correct Answer: Heart

Solution : Given:
Dentist : Teeth :: Orthopedician : Bones :: Cardiologist : ?

Like, Dentist : Teeth→Dentist treats or specializes in the teeth.
And, Orthopedician : Bones→Orthopedician treats or specializes in bones.
Similarly, follow the same pattern for Cardiologist : ?→Cardiologist treats or specialize in the

Correct Answer: Indefatigable

Solution : The correct choice is the first option.

Indefatigable originates from fatigue, which means a feeling of constant exhaustion, and it is used to describe someone who shows untiring effort and remains diligent all the time. This makes it the correct one-word substitute for

Correct Answer: lack of rainfall

Solution : The correct answer is lack of rainfall.

Rainfall is the limiting factor for the vegetation in desert areas. Deserts have a maximum rainfall of less than 25 cm per year. Deserts are classified in two types- hot deserts and cold deserts. Examples of