How (0,20) will be its solution………?
Oops sorry Avinash, I wrote the non-negative integer solutions. My bad. Will edit 🙂
Thanks Sir got it. Wrongly understood the question!
If only two case satisfies in the 1st equation, why is the min no of wrong questions be 3?
Number of cases is not asked. What it asks is minimum value of w, which is 3.
In the second question why are you considering 0. As positive integers is asked. (both)
why 14 is the ans…and not 20
J Sir.. The question is still not edited
Edited now, sorry for the delay!
in the second question if (0,40) is considered, then number of solution is 14. can anybody explain how it is 13 in the solution. because even if question said positive integers, 0 is considered in the solution above
0 is not considered in the final answer. But it is taken initially as it is an obvious integer solution, an easy starting point from which to generate further solutions. You need somewhere to start! Otherwise, you would need to do some trial and error to find the first acceptable solution.
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