.Arun earns Rs. 80 in 7 hours and Varun Rs. 90 in 12 hours. The ratio of their earnings is
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=80/7 and 90/12
LCM of 7 and 12 is 84
=80/7 x 12/12 = 960/84
= 90/12 x 7/7 = 630/84
ratio = 960:630
= 96 : 63
= 32:21
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Answer:
Ratio of their earnings( Arun is to Varun) is 32:21
Step-by-step explanation:
Earnings of Arun in 1 hour= Rs. 80/7
Earnings of Varun in 1 hour= Rs. 90/12
Ratio= 80/7 : 90/12
80/7 ÷ 90/12
80/7 * 12/90
32/21
32:21
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