Can anyone solve 61 que
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Answer:
D
Step-by-step explanation:
a+b : b+c : c+a = 15:12:11
a+b =15x
b+c=12x
c+a=11x
2(a+b+c)= 38x
a+b+c=19x
c=a+b+c - a+b = 19x- 15x = 4x
a= a+b+c - b+c =19x-12x = 7x
b = a+b+c - a+c = 19x - 11x = 8x
a:b:c = 7x: 8x: 4x = 7: 8 :4
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