Question

Reena can make a doll in 6 days meena in 10 days and kavya in 15 days reena and meena work for 3 days how longs will its take meena and kavya to finish the work

Answer 1

Answer:

               Reena                Meena                Kavya

              6 days               10 days             15 days

Lets assume total work as 30 units ( because 30 can be easily cancelled)

Then rate of work=

Reena= 30/6= 5 units/day

Meena= 30/10= 3 units/day

Kavya= 30/15= 2 units/day

Now we know total work is 30 units, and Reena & Meena work for 3 days that means=

Rate of work of Reena+Meena * 3 days= work completed out of 30 units.

5+3 * 3= 24 units

Now out of 30 units Reena & Meena have completed 24, so we're left with 6 units.

This 6 units work is supposed to be completed by Meena& Kavya, so:

= Work left/ Rate of work= Time taken to complete the work

= 6/3+2

=1.2 days or 1 day 4 hours and 48 minutes to be more precise.

Answer 2

Answer:

SEE THE ATTACHMENT

Step-by-step explanation:

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