Question

78% liczby _____ wynosi około 102
____% liczby 540 wynosi około 389
79% liczby 152 wynosi około _____

Answer 1

1.
78% =78/100 =39/50
102:39/50 =102*50/39 =130,77 ≈ 131
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100%*389/540 =38900/540% =72,04%≈72%
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79%*152 =79*152/100 =12008/100 =120,08 

Answer 2