Math, asked by brainlyStranger, 2 months ago

hari is training for a race that consists of cycling and running the ratio of the total number of hours he ran to the total number of hours he cycled is 3:4. if the total time spent doing both is 140 hours how many hours did he spent?​

Answers

Answered by rohit345269
29

Step-by-step explanation:

1.Let the common multiples be X

2.so 3x+4x=140

3.so 7x=140

4.so x=140/7

5.so X=20

6.so Time spent in running =3×20=60 hours

7. so Time spent in Cycling =4×20=80 hours

8. Proof=60+80=140 hours

Answered by anjuridhu2014
9

Step-by-step explanation:

Ratio =3:4

total hours = 140

total ratio = 3+4 = 7

no. of hours he cycled = 4× ̶̶1̶̶4̶̶0 = 20 = 4×20

̶7̶

= 4 ×20 = 80

no. of hours he runs = 20 × 3 = 60

total hours = 80 + 60 = 140

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