a:b = 4:5 Find (3a+2b) :(3b-2a)
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Answer:
a : b = 4 : 5
=> a/b = 4/5
(3a+2b) :( 3b-2a)
=(3a/b+2b/b) : (3b/b-2a/b )
=(3*4/5+2) : ( 3-2*4/5)
= (12/5+2) : (3-8/5)
=22/5 : 7/5
=22 : 7
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