Question
Komal and Seema individually can complete a task in
‘3a’ hours and ‘5a’ hours respectively. If they together can complete (2/3)rd of the work in 5 hours, then find the value of ‘a’.Solution
According to the question, => 5 x [(1/3a) + (1/5a)] = 2/3 => 5 x (8/15a) = 2/3 => a = 4
What is the average of the squares of the first 47 natural numbers?
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