Question

8. 4 taps fill a water tank in 15 minutes. How many minutes will 12 taps
take to fill the same tank ?​

Answer 1

Answer:

The time taken by 12 taps is 5 minutes.

Step-by-step explanation:

Given :

4 taps fill the tank in 15 minutes

To find :

Time required to fill the tank using 12 Taps

Solution :

Let the time taken by 12 taps be m

$\begin{tabular}{|c|c|c|}\cline{1-3}\ Time (x) & 15 & m \\\cline{1-3}\ Taps required (y) & 4 & 12 \\\cline{1-3}\end{tabular}$

Indirect Variation :

$\bigstar \: {\boxed{\sf{x \times y = k}}}$

$\sf{\implies} \:4 \times 15 = 12 \times m \\ \\ \sf{\implies} \: 60 = 12m \\ \\ \sf{\implies} \: m = \dfrac{60}{12} \\ \\ \sf{\implies} \: m = 5$

Time taken = 5 minutes

$\therefore$ The time taken by 12 taps is 5 minutes.

Answer 2

☆5 MINUTES IS THE ANSWER

EXPLANATION:

4 Taps fill the tank in ---✔15 minutes

_____________

》1 Tap fills the tank in ---✔15×4 minutes (indirect proportion)

_____________

》2 Taps fill the tank in:-

$\frac{15 \times 4}{12} \: \: minutes$

=$\frac{5 \times 4}{4} \\ = 5 \: minutes$✔