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The average amount of water in 4 similar tanks is k litres.
(a) Express the total amount of water in the tanks in terms of
k.
(b) If k=15, find the total amount of water in the 4 tanks.

The average amount of water in $4$ similar tanks is $k$ litres. $\newline$ (a) Express the total amount of water in the tanks in terms of $k$ . $\newline$ (b) If $k=15$ , find the total amount of water in the $4$ tanks.

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Ratio and Quadratic equation

Full solution

Q. The average amount of water in

4

similar tanks is

k

litres.

\newline

(a) Express the total amount of water in the tanks in terms of

k

.

\newline

(b) If

k=15

, find the total amount of water in the

4

tanks.

Denote total water as T: Let's denote the total amount of water in the $4$ tanks as $T$ . Since the average amount of water in each tank is $k$ liters, we can express $T$ in terms of $k$ . $T = 4 \times k$
Substitute $k$ with $15$ : Now, we substitute $k$ with $15$ to find the total amount of water in the $4$ tanks. $\newline$ $T = 4 \times 15$
Perform multiplication: Perform the multiplication to find the total amount of water. $T = 60$

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