Aur minutes past 2 pm, the time needed by the minutes hand of a clock

1.	Aur minutes past 2 pm, the time needed by the minutes hand of a clock to s3 pm was found to be 3 minutes less than minutes. Find r.4
Answer» Present time is 2:tMinutes required for time to be 3 pm = t^2 /4 - 3 Then,t + t^2/4 - 3 = 604t + t^2 - 12 = 240t^2 + 4t - 252 = 0t^2 + 18t - 14t - 252 = 0t(t + 18) - 14(t + 18)= 0(t - 14)(t +18)=0t = 14, - 18 As t can not be negativeSo value of t = 14

Aur minutes past 2 pm, the time needed by the minutes hand of a clock to s3 pm was found to be 3 minutes less than minutes. Find r.4

Answer»

Present time is 2:tMinutes required for time to be 3 pm = t^2 /4 - 3

Then,t + t^2/4 - 3 = 604t + t^2 - 12 = 240t^2 + 4t - 252 = 0t^2 + 18t - 14t - 252 = 0t(t + 18) - 14(t + 18)= 0(t - 14)(t +18)=0t = 14, - 18

As t can not be negativeSo value of t = 14