Question

A and B can do a work in 30 days and 40 days
respectively. A worked for 9 days, then B joined and
they together completed the remaining work. If they
earn 210 for the work, then what is the share of A?
(A) 147 (B) 175
(C) 168 (D) 155​

Answer 1

the options are wrong answer is 165

Answer 2

Answer:

please mark my answer as the brainliest

Step-by-step explanation:

LCM =120

Now A=120/30=4

B=120/40=3

A+B=4+3=7

divide the money in half

210/2=105

A worked for 15 days and then B joined.

A will receive the first 210 rupees

Then after 15 days both A and B worked

So rest amount left is 105 rupees so it

to be divided to both A and B

Efficiency of A=

So according to this money it has to be

divided

4/7 x 105 =60 rupees

Total share of A =105+60= 165 rupees

Hope these help you