The ratio 4

The ratio of two number is 5:4 if 40% of the first number is 12, what will be 50% of the second number?

Correct answer:

x =  12

Step-by-step explanation:

a:b=5:4 p1=40%=40100=0.4  p1 a=12 0.4 a=12  0.4a=12  a=30  b=a 45=30 45=24  p2=50%=50100=0.5  x=p2 b=0.5 24=12

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