Question

Puran, Karan and Taran can do a work 10 days, 12 days and 15 days respectively.
How many days will they take to do the same work, when work together ?​

Answer 1

Answer:

60 days

Do the LCM of the numbers

Answer 2

Answer:

$\color{red}Answer:-$

According to the question,

No.of days Puran can work : 10 days

No.of days Karan can work : 12 days

No.of days Taran can work : 15 days

Puran can work in 1 day :

$\frac{1}{10}$

Karan can work in 1 day :

$\frac{1}{12}$

Taran can work in 1 day :

$\frac{1}{15}$

Maximum of work 3 can finish in 1 day:

$\frac{1}{10} + \frac{1}{12} + \frac{1}{15}$

=

$\frac{6 + 5 + 4}{60} = \frac{15}{60}$

Simplest form =

$\frac{1}{4}$

→ Inversely, They'll take 4 days to complete the whole work together