Question

a man riding bicycle from his house at 10 km / hr,reach his office 6 minute late and when he lncrease his speed more 2 km then he reaches 6 minu
te before.find the distance house to office.​

Answer 1

Answer:

12km

Step-by-step explanation:

Time = DistanceSpeed

As per first condition, d10=t+660=d=10t+1 ......(i)

As per second condition, d12=t−660=12t−65 .... (ii)

From Eqs. (i) and (ii), we have

10t+1=12t−65

2t=1+65=115=t=1110

Therefore, From E (i), d=10×1110+1

d = 11 + 1 = 12

d = 12 km

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