My approach- S alone completes the work in s days, and M alone completes the work in m days. Total work done by S & M in 2 days-1/s+1/m When S starts, (1/s+1/m)*8+(1/s)=1(Work completed in 17 days) When M starts (1/m+1/s)*8+(1/m)+(1/s)*1/3=1(Work completed in 52/3 days). Now putting 1/s as x and 1/m as y and solving the linear equations, I am not getting the answer. Correct answer is 21.5 days. Please let me know where I am wrong.
Geo
Any quick was to solve questions of the form Find the area/perimeter of the region bounded by |ax+b|+|cx+d|=e, where a,b,c,d,e are integers.
I am getting this when I click on Takshzilla free PDF? Link- http://www.takshzila.com/free-funda-books/
 Anyone has all of their free pdfs? If yes then please share it with me and especially the coordinate geometry one
If x and y are real numbers such that x^2 + y^2 +2xy = 2, what is the minimum value of x^2 + y^2 ?
 If x is a real number such that log(base 3)5 = log(base 5)(2 + x), then which of the following is true? Â
- 0 < x < 3
- 23 < x < 30
- x > 30
- 3 < x < 23
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Ravi borrowed {10000 from a bank at a simple interest of 1O% per annum' lf Ravi repaid his loan in five equal yearly instalments, paying each instainrent at the end of the respective year, how much did Ravi Pay each Year?
I am not able to solve this, kindly help. Need full solution.Â
Any good source for truth/lie...binary logic?
Find last two digits of 72^79? Need shortcut method to solve this problem.