Question

30 person complete 30 job in 10 minutes how many minutes will 5 person take to complete 10 similar job?

Answer 1

30 people : 30 jobs : 10 mins

Find the duration for 10 jobs

30 jobs = 10 mins

1 job = 10/30

10 jobs = 10/30 x 10 = 10/3 mins

therefore : 30 people : 10 jobs : 10/3 mins

Find the duration for 5  people:

30 people = 10/3 mins

1 person = 10/3 x 30 = 100 mins

5 people = 100 ÷ 5 = 20 mins

therefore 5 people : 10 jobs : 20 mins

Answer: It will take 20 mins

Answer 2

$\bold {\huge {Solutions :-}}$


$\bold {\underline {We~ have, }}$
30 people = 30 jobs = 10 min


$\bold {\underline {So, }}$

30 jobs = 10 min

1 job = 10/30

10 jobs = 10/30 × 10 = 10/3 min

30 people = 10 jobs = 10/3 min


°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

30 people = 10/3 min

1 person = 10/3 × 30 = 100 min

5 people = 100/5 = 20 min

5 people = 10 jobs = 20 min

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

$\bold {\underline {Hence, }}$

$\bold { 20~ minutes~ will ~5 ~person ~take }$
$\bold {to ~complete ~10 ~similar~ job }$