Question

4. Rs. 12
1237
Two taps A and B can fill a tank in 30 min and 36 min respectively.
Both taps are opened together but due to same problem they work
576 and 9/10 of their efficiency. After 'x minutes the problem was
solved and the whole tank filled in 16 12 min in total. Then, find the
value of x?
1.0.5 minute
2. 1 minute
3.1.5 minute
4. 2 minutes

​

Answer 1

Answer:

The value of x is 1 min.

Step-by-step explanation:

Step 1: We must define both the volume V and the instant in time it is flowing past represented by t in order to calculate the flow rate represented as Q, which is equal to Q = V/t. In addition, the equation Q = Av, where A is the flow's cross-sectional area and v is its average velocity, relates flow rate and velocity.

Step 2: It is preferable to use the whole word minutes rather than an acronym. A minute is a time interval that consists of sixty seconds. The notes made during a formal meeting are referred to as minutes in the noun form. Commonly used as an acronym is min.

Step 3:

H  30      6L        

B  36       5L

=180L(T.C)

$5+4.5=9.5 \mathrm{~L}$

$\begin{aligned} & 9.5 \times t+11 \times(16.5-t)=180 \\ & 9.5 t+181.5-11 t=180 \\ & \Rightarrow \quad 1.5 t=1.5 \\ & t=1min .\end{aligned}$

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