Question

By selling a house of rs. 8000 , there was a profit of 1/5th of the SP .A t what price should he sold it to loss 1/3rd of the SP?​

Answer 1

Step-by-step explanation:

For the first article, 

SP=RsS

Given, Profit=25 %

=>CPSP−CP×100=25

=>CP1S−CP1×100=25

=>S−CP1=0.25CP1

=>1.25CP1=S

=>CP1=1.25S=54S

For the second article, 

SP=S

Given, Loss=25 %

=>CPCP−SP×100=25

=>CP2CP2−S×100=25

=>CP2−S=0.25CP2

=>0.75CP2=S

=>CP2=0.75S=34S

So, Total SP of the two articles =RsS+RsS=Rs2S

Total CP the two articles =Rs

Answer 2

Answer:

during a certain period in the life of an earthworm, it's length,L cm is directly proportional to the square root of N, where N is the number of hours after it's birth. one hour after an earthworm is Born, it's length is 2.5 cm.

(1) find an equation connecting L and N.

(2) find the length of an earthworm 4 hours after it's birth.

(3) how long will it take for an earthworm to grow to a length of 15 cm.

Step-by-step explanation:

(answer this question plzzz)