Question
A train moves at 90 km/h and needs to cover a journey in
2 hours. It halts for 10 minutes at the midpoint. What speed must it take for the second half?Solution
Total distance = 90 × 2 = 180 km
Half distance time = (90 ÷ 90) × 60 = 60 minutes
Time left = 120 – 60 – 10 = 50 minutes
Required speed = (90 ÷ 50) × 60 = 108 km/h
The distinct aroma of freshly ploughed land is due to _____
Bael is rich source of:
Which type of crops are cultivated to catch the forthcoming season when the main crop fails?
Which of the following statement is incorrect?Â
Which cotton species is recognized as "American cotton" or "Upland cotton" and has an allelotetraploid chromosome number?
The site of protein synthesis is Ribosomes and The Ribosomes attached to the surface of Endoplasmic Reticulum is termed asÂ
What is the name for the multicellular structures formed by bacterial layers encased in an exopolymeric matrix on root surfaces?Â
Parthenium hysterophorus (Congress grass) can be controlled by:
In which type of cooperative farming do members retain individual ownership of land?
‘Millets’ were among the first crops to be domesticated in India with several evidence of its consumption during the Indus valley civilization. In I...
