Question

radhica , mallica and deepica can together paint a wall in 4 days . radhica can paint it in 12 days while mallica can paint it in 10 days . how long will deepica take to paint the wall all by her self ?

Answer 1

Answer:

QUESTION:-

radhica , mallica and deepica can together paint a wall in 4 days . radhica can paint it in 12 days while mallica can paint it in 10 days . how long will deepica take to paint the wall all by her self ?

ANSWER :-

15 days

STEP BY STEP SOLUTION :-

Time taken by Radhica, Mallica and Deepica to paint the wall → 4 days

• The part of the wall painted by Radhica, Mallica and Deepica in one day = ¼

Time taken by Radhica to paint the wall → 12 days

• The part of the wall painted by Radhica in one day = 1/12

Time taken by Mallica to paint the wall = 10 days

• The part of the wall painted by Mallica in one day = 1/10

The part of the wall painted by Deepica in one day = The part of the wall painted by Radhica, Mallica and Deepica in one day - The part of the wall painted by Radhica in one day - The part of the wall painted by Mallica in one day

→ ¼ - 1/12 - 1/10

→ 15 - 5 - 6 / 60

→ 4/60

→ 1/15

Deepica can paint the wall in 1 ÷ 1/15

→ 15 days