Hello,
A : B= 5 : 8 B : C= 16 : 25
A/B= 5/8 B/C= 16/25
if we multiply both the ratios then we can perform mathematical operations to find the ratio between A and C that is A : C value
A : C= A/B * B/C= 5/8 * 16/25= 2/5
There fore A : C= 2 : 5
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