যদি a:b= 2 : 3 এবং b : c= 2 : 3 হয়, তবে a : b : c=কত?
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a : b = 2 : 3
b : c = 2 : 3
=
=
a/b = ( 2 :3 )× 2 = 4/6 = 4 :6
b/c = 2 : 3 )× 3 = 6 /9 = 6:9
∴ a : b : c = 4 : 6 : 9
উত্তর :- a : b : c = 4 : 6 : 9
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