solve this problem

[msksent]

Let the speed of Ram be R and Shyam be s in m/sec. Then we can write
(2000/R) = (1800/s) --30 ---(1) and
(1000/R) = (2000 --180s/s) --(2) By simultaneous solving of 1 and 2 we get R = 2000/240 and S=20/3 = 2000/300. Hence Ram will complete 2000m in 240 sec or 4 min and Shyam in 300 sec or 5 min. Hence the answer.

[subha_ls]

Plz solve and find the value of

designer,
Painter
plumber
electrician
constructor
Mechanic

The value are:

Designer + Painter = Rs. 1100
Painter + Plumber= Rs. 1700
Plumber + Electrician = Rs. 1100
Electrician +Constructor = Rs. 3300
Constructor + Mechanic = Rs. 5300
Mechanic + Painter = Rs. 3200

[msksent]

designer = 200
Painter = 900
plumber = 800
electrician = 300
constructor = 3000
Mechanic = 2300

[j0]

Well Subha I guess there are other ways to go about it , but I reduced the equations to make a different equation involving the Painter and the Plumber.

Start with the Plumber+ Electrician, equate with Electrician+Constructor by removing the common term (that being the electrician)
Keep going down that sequence removing the common terms until you land up with an equation having Painter - Plumber = 100

Equate it with the existing one and voila you have your answer, if i haven't thoroughly confused you.

[j0]

<double post>

[Ravi Raja]

Originally Posted by j0

how is 88 x Root(2)/4 = 44.Root(2)?

Isn't that 22.Root(2)?

Oh! Sorry, that was my mistake. Thanks for pointing that out.
Sorry once again.