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Let the speed of the boat in still water be x km/h, and the speed of the stream be y km/h. Downstream speed = x + y Upstream speed = x - y We know: Time downstream = Distance / Speed = 80 / (x + y) = 8, so x + y = 10 Time upstream = Distance / Speed = 80 / (x - y) = 10, so x - y = 8 Now, solve these two equations: x + y = 10 x - y = 8 Add the two equations: 2x = 18 ⇒ x = 9 km/h So, the speed of the boat in still water is 9 km/h. Correct Option: c) 9 km/h
Which cost refers to the additional cost incurred by producing one additional unit of output?
Liquid nitrogen: Used to store seeds at -196°C, which stops metabolic deterioration and protects the seeds from contamination.
Plant’s ability to chemically inhibit the growth of other plants is called
If recombination occurs before the chromosome replication, percentage of parental type gametes will be:
The gynophores of groundnut is commonly referred to as
Which are of the following describes the characteristics of Sedges?
The weeds whose seed is difficult to separate from crop seed after contamination is called ______
Zea mays identata is:
Marginal utility of money can NOT be
1. Positive
2. Negative
3. Zero
Which of above is/are correct?
In PMFBY, the threshold yield is calculated by multiplying average yield with ___
