On a particular day, Anjali increases her speed by 27.27% and reached office 15 minutes earlier. Then what is the usual approximate time of her journey?
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70 minutes
60 minutes
50 minutes
40 minutes
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40 minutes
before she started s o the answer is 40 minutes
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● Usual approximate journey of Anjali is 70 minutes.
● Let's suppose the usual time taken by Anjali be X minutes.
● After increasing high speed by 27.27%, she would reach her office 15 minutes early.
● So 100% percent is X minutes
● And 127.27% is X - 15 minutes
● Speed = distance / time
So distance = speed × time
● We know that distance to her office is constant.
So speed 1 into time 1 = 2 speed 2 x time 2
100 × x = 127.27 ( x - 15 )
127.27 x - 100 x = 127.27 ×15
X = 127.27 × 15 / 27.27 = 70
So time taken by Anjali will be approximately 70 minutes.
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