Tech Mahindra Company Numerical Ability Time Distance and Speed

Jayesh is supposed to walk from his house to park every morning. One morning, he is in real hurry and wants to save at least 2/3rd of the time. By how much percentage he should increase his speed.

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let he take 9 hour every morning.
new time taken=9*(2/3)=6 hr.
now speed is inversely propertonal to time
so previous speed 6 km/hr.
new speed =9km/hr.
increase in speed 3km/hr.
%=(3/6)*100=50%
5 years agoHelpfull: Yes(3) No(0)

Time ratio for old and new is 3:1
Speed ratio is 1:3
So he increase 200 percent
4 years agoHelpfull: Yes(2) No(0)

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