Question

A pen can hold 10 mL of ink. How many litres of ink is needed to fill
128 pens?​

Answer 1

Answer:

Quantity of ink in 1 pen = 10 ml

So, quantity of ink in 128 pens =

128 x 10 ml = 1280 ml

Now, 1000 ml = 1 litre

Now, 1280 ml = 1000 ml + 280 ml

= 11280 ml = 1. 280 1