Question

Samar can read 600 pages in 6hours whereas, samar and priti together can read 5000pages in 40hours in how much time (in hour) can priti read 500 pages

Answer 1

step 1 = find out who much pages does samar read in 1 hour
= 600/6
=100
step 2 = find how much samar can read in 40 hours
= 40*100
= 4000
step 3 = find how much priti can read in 40 hours
= 5000- 4000
= 1000
= 40 hours = 1000 pages
step 4
= see how much hour does priti need to read 500
= find 500 = 1000/2
= 40/2
=20
:- the answer in 20 hours

Answer 2

Given : Samar can read 600 pages in 6 hours whereas, Samar and Priti together can read 5000 pages in 40 hours.

To Find : In how much time (in hours) can Priti read 500 pages

A 12

C. 20

B. 15

D. 24​

Solution:

Samar can read 600 pages in 6 hours

=>  Samar can read in  1 hr    =  600/6 = 100 pages

Samar and Priti together can read 5000 pages in 40 hours.

=>  Samar and Priti together can read  in  1 hr  = 5000/40

= 125 pages

Priti  can read in  1 hr   = 125 - 100 = 25 Pages

Priti can read in N hrs  = 25N  pages

25N  = 500

=> N = 20

Priti can read  500 pages in 20 hrs  

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