4 by 5 = x by 100 = y%
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Answer:
20%
Step-by-step explanation:
4/5=x/100=y% ---- eqn(1)
400/5=x=y%
40=x=y% ---- 40 is equals to x & y%, so put this value in eqn(1)
4/5=40/100=40%
4/5=4/10=40%
40=20=40%
40/20=40%
2=40%
40%/2
20%
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