Abike race is 50 miles long. if each lap is 10 miles and 4 laps have already been completed, how many more laps are left in the race?

You know that the total race is 50 miles. If each lap is 10 miles and 4 laps have already been completed, there would be one lap left.

This is because of the following,

10x4 = 40

50-40 = 10

1 lap= 10 miles

If a bike race is 50 miles long, and each lap is 10 miles, then we will count by tens per lap.  So if 4 laps have already been completed, we take 10 x 4 to get 40.  If each lap is 10 miles long, then all we need is 1 more lap to get to 50.  So your answer would be 1 lap is left.  Hope this helped!

-TTL

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐