Shami‌ ‌drinks‌ ‌12‌ ‌glasses‌ ‌of‌ ‌water‌ ‌ everyday.‌ ‌If‌ ‌the‌ ‌capacity‌ ‌of‌ ‌1‌ ‌glass‌ ‌is‌ ‌250‌ ‌mL,‌ ‌then‌ ‌how‌ ‌many‌ ‌litres‌ ‌of‌ ‌water‌ ‌he‌ ‌drinks‌ ‌in‌ 30 days?

Options

A. 90 L
B. 70 L
C. 65 L
D. 75 L

Answer

To solve the problem step by step, we will follow these instructions:

### Step 1: Calculate the total amount of water Shami drinks in one day.
Shami drinks 12 glasses of water every day, and the capacity of one glass is 250 mL.

To find out how much water he drinks in one day:
\[ \text{Total water in one day} = \text{Number of glasses} \times \text{Capacity of one glass} \]
\[ \text{Total water in one day} = 12 \, \text{glasses} \times 250 \, \text{mL/glass} = 3000 \, \text{mL} \]

### Step 2: Convert the daily water intake from mL to liters.
We know that 1 liter is equal to 1000 mL. To convert the daily intake from mL to liters:
\[ \text{Total water in one day in liters} = \frac{\text{Total water in one day in mL}}{1000} \]
\[ \text{Total water in one day in liters} = \frac{3000 \, \text{mL}}{1000} = 3 \, \text{liters} \]

### Step 3: Calculate the total amount of water Shami drinks in 30 days.
Now, we need to find out how much water he drinks in 30 days:
\[ \text{Total water in 30 days} = \text{Total water in one day in liters} \times 30 \]
\[ \text{Total water in 30 days} = 3 \, \text{liters/day} \times 30 \, \text{days} = 90 \, \text{liters} \]

### Final Answer:
Shami drinks a total of **90 liters** of water in 30 days.

---