Question

5. Ram and Rahim can polish the floor of a building in
25 days. Ram alone can do
of the job in 15 days. In
how
many days can Rahim’alone polish the floor of
the building?
WARNING:- Wrong answer will be reported ​

Answer 1

Ram & Rahim CAN POLISH THE FLOOR in 25 days

Ram DOES 1/3 OF HIS JOB IN 15 DAYS

Rahim = ?

LET 1ST PERSON BE x AND 2ND PERSON BE y

X AND Y TOGETHER CAN FINISH A WORK IN 25 DAYS.

ONE DAY WORK OF X AND Y = 1/25

ONE Day WORK OF X

WORK..........DAYS

1/3--------------- 15

1 ------------------ x

( cross multiplication )

x = 45

one day work of x & y = 1/25

x + y = 1/25

1/45+ y = 1/25

at last after taking 1/45 to the other side and after taking LCM

y = 4/225

= 56 1/4 days

Answer 2

Answer:

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