MathRevolution wrote:
Is the total profit from the sales of 3 products greater than $6?
1) The least profit from the sales of the 3 products is at least $2.1
2) The 2nd largest profit from the sales of the 3 products is at least $3.1.
Stmnt 1) Remaining 2 profits are atleast 2.1 -> 2.1*3 = 6.3 (min profit) - suff
Stmnt 2) Third profit is atleast 3.1 -> min profit is 0+3.1+3.1 = 6.2 (suff)