Question

Tanisha can do a piece of work in 15 hrs. While Sonakshi can do it in 12 hrs. How long will both take to do it,
working together ​

Answer 1

Answer:

15+12=27 will take hours to word

i think

Answer 2

Step-by-step explanation:

time taken by both of them is

$\frac{1}{t} = \frac{1}{15 } + \frac{1}{12}$

$= > \frac{5 + 4}{60}$

$= > \frac{9}{60}$

$= > \frac{3}{20}$

$t = \frac{20}{3}$

hence,

time taken if they work together is 6.66 hours.