Explanation

When the trains move in opposite directions, their relative speed is the sum of their individual speeds:

60 km/h + 40 km/h = 100 km/h

To convert this to meters per second, divide by 3600 (since there are 3600 seconds in an hour):

100 km/h ÷ 3600 = 27.78 m/s (approximately)

The total distance covered by the trains as they cross each other is the sum of their lengths:

140 m + 160 m = 300 m

Time = Distance ÷ Relative Speed

Time = 300 m ÷ 27.78 m/s ≈ 10.8 s

Explanation

• In September 2015, the United Nations replaced the Millennium Development Goals (MDGs) with the Sustainable Development Goals (SDGs).
• The SDGs are a set of 17 goals aimed at ending poverty, protecting the planet, and ensuring peace and prosperity for all, by 2030.
• The MDGs were a set of 8 goals that were launched in 2000 and ended in 2015.

Explanation

• The correct sentence is: Ali wants to be a doctor.
• Wants is the correct choice because it indicates Ali's current desire or intention to become a doctor.

Explanation

• Hematology is a subspecialty of pathology that specifically deals with diseases related to blood and blood-forming organs.
• Hematologists diagnose and treat blood disorders such as anemia, bleeding disorders, and blood cancers like leukemia.

Explanation

The pattern in the series is as follows:

9 + 1 = 10

10 + 3 = 13

13 + 6 = 19

The next difference should be +9:

19 + 9 = 28

So, the correct answer is 28.

Explanation

• During the era of the East India Company, the areas of Bihar, Orissa, and Assam were part of the Bengal Presidency.
• It was one of the three main presidencies of British India, along with Bombay and Madras.
• The Bengal Presidency was established in 1757 and covered a vast territory, including present-day Bangladesh, West Bengal, Bihar, Jharkhand, Orissa, and parts of Assam.

Explanation

To zoom an Excel worksheet, you can use:

• The mouse pointer in Print Preview: Click and drag the mouse pointer in the lower right corner of the Print Preview window to zoom in or out.
• The zoom button on the Print Preview toolbar: Click the zoom button (magnifying glass icon) to zoom in or out.
• The zoom command on the View menu: Select View > Zoom > Zoom In/Out or use the shortcuts Ctrl+Plus sign (+) to zoom in or Ctrl+Minus sign (-) to zoom out.

Explanation

• General Ayub Khan was a member of the cabinet in 1954, and Muhammad Ali Bogra was the Prime Minister of Pakistan at that time.
• Bogra's cabinet was often referred to as the "Talent Cabinet" or "Cabinet of Talents" due to the presence of several prominent figures, including General Ayub Khan, who later went on to become the President of Pakistan.

Explanation

• Hazrat Ayesha (RA) was the daughter of Hazrat Abu Bakr (RA), who was one of the closest companions of the Prophet Muhammad (peace be upon him) and the first caliph of Islam.
• Hazrat Ayesha (RA) was a prominent scholar, narrator of hadith, and a respected figure in Islamic history.

Explanation

• Charles Darwin was a British naturalist and biologist who laid down the framework for the theory of evolution through his groundbreaking book "On the Origin of Species" in 1859.
• He was born in Shrewsbury, England, and spent most of his life in the UK.