Question

if one kg graphs cost Rs.90 what is the cost of
$3 \frac{1}{2}$
kg of graphs​

Answer 1

Step-by-step explanation:

1kg =90

$3 \frac{1}{2} = \frac{7}{2} \\ \frac{7}{2}kg = 90 \times \frac{7}{2} \\ \frac{7}{2} kg = 315$

3 1/2 kg cost ₹315