Guys answer the questions in attachment
Answers
Step-by-step explanation:
Let us consider the time taken by the smaller diameter tap = x
The time is taken by the larger diameter tap = x – 10
Totaltimeistakentofillatank=938
Total time is taken to fill a tank = 75/8
In one hour portion filled by smaller diameter tap = 1/x
In one hour portion filled by larger diameter tap = 1/(x – 10)
In one hour portion filled by taps = 8/75
⇒ 1x+1x−10=875 x−10+xx(x−10)=875 2x−10x2−10x=875
75 (2x-10) = 8(x2-10x)
150x – 750 = 8x2 – 80x
8x2 − 230x + 750 = 0
4x2−115x + 375 = 0
4x2 − 100x −15x + 375 = 0
4x(x−25)−15(x−25) = 0
(4x−15)(x−25) = 0
4x−15 = 0 or x – 25 = 0
x = 15/4 or x = 25
Case 1: When x = 15/4
Then x – 10 = 15/4 – 10
⇒ 15-40/4
⇒ -25/4
Time can never be negative so x = 15/4 is not possible.
Case 2: When x = 25 then
x – 10 = 25 – 10 = 15
∴ The tap of smaller diameter can separately fill the tank in 25 hours
Ohh I'm really really sorry for late reply.....
Actually she don't use her phone so it's switched off only half of the day.....sorry
No actually her health is not getting better it's getting more bad which is not good for her.....
And mentally also . I know I should not tell but she is very hurt and I know that even if she don't say . Don't know how....
She don't even want to listen to anyone......She is really a little baby not listening and not doing as told to....
