plz solve the ques no 190
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To make it easy, I've drawn diagrams of the representation of each fuel tank case.
Hope you find it useful.
Hope you find it useful.
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vershamishra12oycd27:
u helped it in a good way bt i didn't get it
*explained
I need to know first which case is troubling you. Is it the last one?
yes..last one
Think of it like this. You added 50 % A in 3rd tank. It had 25% A already in it, and 25% of B. When you are going to further halve it, that means the 75% A will also become half, and 25% B will too. After halving both, you fill the tank by adding only B fuel, which means you add 50% more B to half of 25% B. The final percentages come out as -- Half of 25% B, which we got by halving the tank of 3rd case, + 50% more of B that you have just added. Summing up B, we get 62.5%.
You can now verify the amount of A left in the tank by subtracting 62.5% from 100%. And it will come out as 37.5%.
yeah fianlly got it
*finally
once again tysm
You're welcome.
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