Question

×:60=15:2. &&&&!!!!!!

Answer 1

$x \div 60 = 15 \div 2 \\ 2x = 60 \times 15 \\ 2x = 900 \\ x = 450$

Answer 2

Составим пропорцию:
$\frac{x}{60} = \frac{15}{2} \\ 2x = 60 \times 15 \\ x = \frac{60 \times 15}{2} \\ x = 30 \times 15 \\ x = 450$
ОТВЕТ: 450