Question

If a:b=7:3 then find is the value of (5a+3b):(5a-3b)?​

Answer 1

Step-by-step explanation:

In a cage, there are sparrows, parrots and doves in the ratio 3:7:5. If the number of parrots was more than the

number of sparrows by a multiple of both 9 and 7, what is the minimum number of birds in the cage?

945

630

238

None of theseFind amount and C.I on Rs. 6000 for 2 years at 9%p.a. compounded annually-(prepare) for the examination for one yearIf a:b=7:3 then find is the value of (5a+3b):(5a-3b

Answer 2

Answer:

22/13 or 1.69

Step-by-step explanation:

a/b = 7/3

3a =7b

a=7b/3

now,

5a+3b = 5(7b/3)+3b = 35b/3+ 3b = (35+9)b/3= 44b/3

and ,

5a-3b = (35-9)b/3 = 26b/3

5a+3b/5a-3b = (44b/3)/(26b/3) = 22/13 or 1.69