A boat running downstream covers a distance of 24 km in 3 hrs while it covers the same distance upstream in 6 hrs. Then speed of the boat in still water is
Let the speed of boat in still water be a km/hr and that of stream be b km/hr. Therefore, 24/(a + b)= 3 ⇒ a + b = 8 ………..(i) 24/(a – b)= 6 ⇒ a + b = 4 ………..(ii) On adding, eq (i) and (ii) ⇒ 2a = 12 km/hr ⇒ a = 6 km/hr
A person who uses computers to gain unauthorized access to data is known as _________
अंग्रेजी शब्दकोश के अनुसार निम्नलिखित में से कौन सा दूसर...
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U2C, O7D, I23E, E72F, A220G,?
