Question
A train started from station P and preceded towards
station Q at a speed of 98 km/h. 30 minutes later, another train started from station Q and preceded towards station P at 100 km/h. If the distance between the two stations is 643 km, at what distance from station P will the trains meet?Solution
Let the train will meet ‘t’ hours after the train from station Q started Distance travelled by train started from station P = 98 x 30/60 km Distance travelled by train started from station Q = (98 + 100) x t km Total distance between station P and Q = 643 km Now, 98 x (30/60) + (98 + 100) x t = 643 ⇒ 49 + 198t = 643 ⇒ 198t = 643 – 49 = 594 ⇒ t = 594/198 = 3 hours Distance travelled by train starting from station P at all meeting point = 49 + 98 x 3 = 343 km
Which component forms the backbone of a DNA molecule?
Under water scarcity, which irrigation method is considered the most efficient for fruit orchards?
Match List-I with List-II
Choose the correct answer fr...
The insects which have the capacity to survive through quite prolonged exposure to non – freezing low temperatures are known as _______:
Nucleic acids are:
Cabbage is an example of:
Number of Nuclei present in a pollen grain are :
Choose the correct statement.
What does 'NREGP' stand for?
Where is the ICAR-Central Institute for Arid Horticulture located?
Relevant for Exams:
