Question

Praful had done 1/2 job in 30 days sarabijith the rest in 10 day how many days together​

Answer 1

Step-by-step explanation:

1/2*30 = 15 days

and 30-10 = 20 ans

Answer 2

Answer:

15 days

Step-by-step explanation:

P = 30 * 2/1 = 60 DAYS (P can complete ½ of a job, so remaining job ½)

.•. S = 10 * 2/1 = 20 DAYS

NOW

LCM of P(60) and S(20) work ie. 60 ( ie total work which will be done )

P total work 60. so 1 day work of P 60/60 = 1

S total work 20. so 1 day work of S 60/20 = 3

total work of P and S 1 + 3 = 4

.•. total days for complete 60 works is 60/4 = 15 days