Calculate the real distance from the estuary of the Narmada River to the estuary of the Ganga river. Class 6

Calculate the real distance from the estuary of the Narmada River to the estuary of the Ganga river. Class 6

Question 1.

Returning to Fig. 5.2 in Chapter 5 of this textbook, taking the scale to be 2.5 cm = 500 km, calculate the real distance from the estuary of the Narmada River to the estuary of the Ganga river. Class 6

[Hint : Round off your measurement on the map to an easy number.]

Answer:

The measurement between estuary of the Narmada River to the estuary of the Ganga river is 10 cm.

So, 10/2.5 = 4.

Then, 500 km × 4 = 2000 km

The real distance from the estuary of the Narmada River to the estuary of the Ganga river is 2000 km.

Question 2.

Why is it 5:30 pm in India when it is 12 pm or noon in London? Class 6

Answer:

London is located at. approximately 0°W longitude. India is located at approximately 82°E longitude. Each 15° of longitude is equal to 1 hour, so 82° ÷ 15° = 5.467 ≈ 5.5 hours.

That is why, India follows Indian Standard Time (IST), which is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT). London is in the GMT time zone, so when it is noon in London (GMT), it is 5:30 pm in India (IST).