If a:b=7:6 find the value of 3a+5b:7b-5a
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a:b=3:5
b:c=7:8
a:b=3:5=21:35 (multiplying with 7)
b:c=7:8=35:40 (multiplying with 5)
now a:b:c=21:35:40
so, 2a:3b:7c= 42:105:280=6:15:40
final answer is 6:15:40
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b:c=7:8
a:b=3:5=21:35 (multiplying with 7)
b:c=7:8=35:40 (multiplying with 5)
now a:b:c=21:35:40
so, 2a:3b:7c= 42:105:280=6:15:40
final answer is 6:15:40
for more information, please follow us at
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Raif11:
you have done little bit mistake
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