Question

*A tank contains 18,000 litres of water. If it decreases at the rate of 5% per day, what will be the quantity of water left in the tank after 2 days?​

Answer 1

Given : A tank contains 18,000 litres of water.

It decreases at the rate of 5% per day,

To Find : what will be the quantity of water left in the tank after 2 days?*

1️⃣ 16245 lit.

2️⃣ 16345 lit.

3️⃣ 16445 lit.

4️⃣ 18245 lit.8​

Solution:

tank contains water = 18000 litre

Decreased in 1st day =  (5/100)18000 = 900 litre

Remain after 1 day = 18000 - 900  = 17100 litre

Decreased  on 2nd day = (5/100)17100  = 855 litre

quantity of water left in the tank after 2 days = 17100 - 855

= 16245 litre

16245 litre water left in the tank after 2 days

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Answer 2

$\Huge\mathbb{{\color{navy}{{\underline{AN}}}}{\color{blue}{{\underline{SW}}}}{\blue{{\underline{ER}}}}{\color{skyblue}{:}}}$

$\huge\color{skyblue}{\textbf{\textsf{GIVEN :}}}$

$\blue\bigstar$ A tank contains 18000 litres of water.

$\blue\bigstar$ It decreases at the rate of 5% per day.

$\huge\color{skyblue}{\textbf{\textsf{TO \: FIND :}}}$

$\blue\bigstar$ What will be the quantity of water left in the tank after 2 days ?

$\huge\color{skyblue}{\textbf{\textsf{SOLUTION :}}}$

Decreased on first day,

$➜ \: \frac{5}{100} \times 18000$

$➜ \: 900 \: litres$

Quantity of water left in the tank after first day,

$➜ \: 18000 - 900$

$➜ \: 17100 \: litres$

Decreased on second day,

$➜ \: \frac{5}{100} \times 17100$

$➜ \: 855 \: litres$

Quantity of water left in the tank after second day,

$➜ \: 17100 - 855$

$➜ \: 16245 \: litres$

$\small\boxed{{\mathbb\blue{Hence, \: 16245 \: litres \: of \: water \: was \: left \: in \: the \: tank \: after \: 2 \: days.}}}$

Hope it Helps Buddy ♥️