# Cost per thousand example 3

Subject: Advertising and Public Relations

Exam: TEE

Reader: https://deep-learning-study-room.vercel.app/apr/#tee/practice/numbers/cpm3

Canonical: https://deep-learning-study-room.vercel.app/read/apr/tee/practice/numbers--cpm3/

Extra drills; no claim that these exact questions or allocated marks appeared in TEE

### Optional practice question. A media placement costs ₹45,000 and delivers 300,000 impressions in the defined target. Calculate cost per thousand impressions. [2 practice marks]

#### Answer

Authored illustration: these numbers were chosen to explain a faculty-note concept. No matching supplied-data question was found in the 14 recovered APR papers. Standalone calculation drills are optional practice; their marks are author-set.

## Given

| Cost | Impressions |
| --- | --- |
| ₹45,000 | 300,000 |

## To find

Cost for 1,000 target impressions.

## Formula and why



$$
\text{CPM}=\frac{C}{I}\times1000
$$



C is the placement cost in rupees; I is target impressions. Dividing gives rupees per impression, then multiplying by 1,000 gives rupees per thousand.

## Step-by-step solution

#### Step 1. Substitute values



$$
\text{CPM}=\frac{45000}{300000}\times1000
$$



#### Step 2. Find cost per impression



$$
45000\div300000=0.15
$$



#### Step 3. Scale to 1,000 impressions



$$
0.15\times1000=150
$$



**Final answer:** ₹150 per 1,000 target impressions.

#### Practical interpretation · What the answer means

This is a delivery-cost measure. It does not establish that all exposures were noticed or that the placement generated sales.