Question

Its urgent pls send a pic of it ..

Answer 1

Answer:

Ranu = 18, prasad = 9

Step-by-step explanation:

Let "p" represent time taken by prasad

Person Time work efficiency

Ranu 9+p p

p(9+p)

Prasad p 9+p

p(9+p)/(9+2p) = 6

9p + p² = 54 + 12p

p² - 3p - 54 = 0

p² +6p - 9p -54 = 0

(p+6)(p-9) = 0

p = 9 or -6

Days can't be negative ,so p = 9

Ranu takes 18 days.