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Let the speed of boat in still water =B and speed of stream =S then B=10km/h and S= 8km/h So now Speed of Boat in upstream = B-S=2km/h Speed of Boat in Downstream =B+S=18km/h ATQ- t=540/18+540/2 =30+270 =300hours.
Which of the following trophic levels (in the pyramid of number) has maximum number of individuals?
In the upper reaches of the atmosphere, a molecule containing three atoms of oxygen is found. This forms a layer called:
How many circles does a target have in archery?
Which country declined the invitation to join the BRICS group among the six nations that were extended invitations?
Which among the following Indian Olympians is associated with wrestling sport?
At the Dadasaheb Phalke Award 2022 ceremony held on 20th February 2022 in Mumbai, which Indian movie has won the Best Film Award?
Which of the following becomes the first district in India to cover 100% households under ABPMJAY- SEHAT scheme?
In which season is Sarhul celebrated in Jharkhand?
If there are enough coins of denomination ₹1, ₹2 and ₹5, then in how many ways can one pay ₹10?
The Socio-Economic and Caste Census (SECC) 2011 conducted by the government of India ranked households in how many categories?