Question

if a/b=c/d=5. find the value of 3a+4c/3b+4d=?​

Answer 1

Answer:

5

Step-by-step explanation:

a/b = 5  ⇒  a = 5b

 hence, 3a = 15b ...............1

c/d = 5  ⇒  c = 5d

 hence, 4c = 20d ..............2

Adding then,

3a + 4c = 15b + 20d

( 3a + 4c)/( 3b + 4d) = 5

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