1. A person cycles from hostel to college at a speed of 36 kmph and reaches 7 minutes late. If he cycles at a speed of 45 kmph and he reaches early by 5 minutes. Find the distance between hostel and college.
Write Comment
Comments
By: anil on 05 May 2019 01.13 am
Let ideal time taken = $$t$$ hours Also, speed is inversely proportional to time. => $$frac{36}{45}=frac{t-frac{5}{60}}{t+frac{7}{60}}$$ => $$4t+frac{7}{15}=5t-frac{5}{12}$$ => $$5t-4t=frac{7}{15}+frac{5}{12}$$ => $$t=frac{28+25}{60}=frac{53}{60}$$ $$ herefore$$ Distance = speed $$ imes$$ time = $$36 imes(frac{53}{60}+frac{7}{60})$$ = $$36 imes1=36$$ km => Ans - (C)
Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use