PROBLEMS OF THE WEEK |
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Problem of the week: May 26, 2004
1.- The sum of three numbers is -2. The sum of 3 times the 1st number, twice the 2nd2.- A computer A, can process a payroll in 30h, a computer B can process the same
work in 20h and the fastest computer C can process the work in 15h. How long
would it take the three computers together to process the payroll?
3.- How many liters of a 50% solution of H2SO4should be added to 6L of 25%
solution of H2SO4 to obtain a 40% solution?
4.- A rectangle is to be inscribed in an isosceles triangle of height 8 and base 10.
Find the greatest area of such rectangle.
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More problems coming soon, stay tune...