Initial volume of water = 20 litres
Final volume of water = 14 litres
Leaked volume of water = 6 litres
Time taken to leak the water = 24 hours
Leaked volume in an hour = 6 / 24
= 0.25 litres
He is wrong because if a + b > c it doesn't follow that a^2 + b^2 > c^2
(a + b^2 will always be greater than c^2 but a^2 + b^2 will not always be.
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An example:
Right angled triangle with sides 3, 4 and 5:-
3 + 4 > 5 but 3^2 + 4^2 = 5^2
You could make it true by making it (8x10) plus (8x1)
Explanation: 8x11=88 and 8x10=80 and 8x1=8 and 80+8=88

Here's the solution ~



Now we will use this identity in denominator
[ a² - b² = (a + b)(a - b) ]

