1700 students took an exam 85% students passsed it. Find the number of students who failed in the exam.

Answer

To find the number of students who failed the exam, we will follow these steps:

### Step 1: Calculate the number of students who passed the exam.
To find the number of students who passed, we need to calculate 85% of the total number of students, which is 1700.

\[ \text{Number of students who passed} = \frac{85}{100} \times 1700 \]

### Step 2: Perform the multiplication.
Now, let's calculate \( \frac{85}{100} \times 1700 \).

\[ \frac{85 \times 1700}{100} = \frac{144500}{100} = 1445 \]

So, 1445 students passed the exam.

### Step 3: Calculate the number of students who failed.
To find the number of students who failed, subtract the number of students who passed from the total number of students.

\[ \text{Number of students who failed} = \text{Total students} - \text{Students who passed} \]

\[ \text{Number of students who failed} = 1700 - 1445 \]

### Step 4: Perform the subtraction.
Now, let's subtract 1445 from 1700.

\[ 1700 - 1445 = 255 \]

So, 255 students failed the exam.

### Final Answer:
The number of students who failed the exam is **255**.

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