Question

A company build 10 phone in 5 year. So 20 phone build in how many years. ​

Answer 1

Answer:

2.5

Step-by-step explanation:

phone. yrs

10 5

20 x

you cross multiply

10x = 20* 5

10x = 25

x = 25/10

x = 2.5

Answer 2

Answer:

1 phone will be built in :

10 : 5

2 : 1  = 0.5

for 20 phones = 20 x (5/10)

                         = 10 years

therefore 20 phones can be built in 10 years.