Question

Calculati 35% din 120 și 72% din 15% din 50

Answer 1

35/100 × 120 = 42
72/100 × 15/100 × 50 = 72/100 × 15/2 = 1080/200 = 108/20 = 5,4

Answer 2

$\frac{35}{100} \times 120 = \frac{35}{10} \times 12 = \frac{7}{2} \times 12 = 7 \times 6 = 42$

$\frac{72}{100} \times \frac{15}{100} \times 50 = \frac{36}{50} \times \frac{3}{20} \times 50 = 18 \times \frac{3}{10} = 9 \times \frac{3}{5} = \frac{27}{5} = 5.4$