Henry and gavin are marking exam papers. each set takes henry 36 minutes and gavin 1 hour. express the times henry and gavin take as a ratio.
give your answer in its simplest form.

3:5

Step-by-step explanation:

because

36:60

divide by 6

6:10

divide by 2

3:5

< 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⭐

answer

106 emergencies

step-by-step explanation: