Question
Train P starts from Lucknow to Dehradun at 11:55 am with
an average speed of 22.5 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an average speed of 17.5 m/s. At what time the two trains will meet each other if the distance between Lucknow and Dehradun is 615 Km.ÂSolution
Given: Distance between Lucknow and Dehradun = 615 km Speed of Train P = 22.5 m/s = 22.5 × 3.6 = 81 km/h Speed of Train Q = 17.5 m/s = 17.5 × 3.6 = 63 km/h Train P starts at 11:55 AM Train Q starts at 1:35 PM Step 1: Time gap between starts = 1 hr 40 min = 1 + 40/60 = 5/3 hr Step 2: Distance covered by Train P before Train Q starts = 81 × 5/3 = 135 km Remaining distance = 615 - 135 = 480 km Step 3: Relative speed = 81 + 63 = 144 km/h Time taken to meet = 480 / 144 = 10/3 hr = 3 hr 20 min Step 4: Meeting time = 1:35 PM + 3 hr 20 min = 4:55 PM Final Answer: The two trains meet at 4:55 PM.
In high-temperature short-time (HTST) method of pasteurization, milk is exposed to a temperature of
Low-level irradiation of fresh fruits is used to:
Butter or ghee is adulterated with the addition of……..
What is the full form of NOEL?
What is the biggest threat to food safety?
Which one of the following is not a food preservative?
The catalytic efficiency of two different enzymes can be compared by the:
Increase in metabolic rate that occurs in response to a stimulus like food ingestion is called:
following are the example of primary packaging in food
a.      metallic can
b.     milk pouches
c.      cho...
Relevant for Exams:
