Question

A shopkeeper bought 21km 150m of a brass cable pack. What is the length of 5 such packs?​

Answer 1

length of one pack = 21km 150 = 21.150 km

length of 5 packs =

21.150 x 5 = 105.75 km (.75 here represents 75/100 in which we have to convert 100 to 1000 so for that we will multiply 75 x 10 and 100x10 which is

750/1000 so that is why it is 105 km and 750 m)

= 105 km 750 m

Answer 2

Answer: 105 km 750 m

Step-by-step explanation:

Length of one brass cable pack

$= 21 \: km \: 150 \: m \\ = 21.15 \: km$

Length of 5 such packs

$= (21.15 \times 5) \: km \\ = 105.75 \: km \\ = 105 \: km \: 750 \: m$

∴ The length of 5 such packs is 105 km 750 m.