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ATQ, Let, speed of Submarine in still water and speed of stream is ‘9a’ km/h and ‘4a’ km/h, respectively. Upstream speed = 9a – 4a = 5a km/h Downstream speed = 9a + 4a = 13a km/h So, 112/5a + 130/13a = 81/10 Or, (22.4 + 10) × 10/81 = a Or, a = 4 Upstream speed = 5 × 4 = 20 km/h Downstream speed = 13 × 4 = 52 km/h Desired time = (64/20) + (195/52) = 3.2 + 3.75 = 6 hrs 57 minutes
Adipose tissue is an example of which type of tissue?
Which of the following correctly matches the scientist with their discovery?
Which is the largest part of the human brain?
Voluntary muscles are also known as:
Green plants are usually the first link in any food chain because
Animals that lack a body cavity are known as:
Tendons connect:
The ‘Standing Crop’ in an ecosystem refers to: