A shopkeeper told me when I have asked him the total number of cellphones in his shop, that he had all Kyocera except three, all Nokia except three, all samsung except three and all L.G. except three. The number of mobile(i.e., cell phones) he had is :

Options

A. 24
B. 256
C. can't be determined
D. none of these

Answer

To solve the problem, we need to determine the total number of cellphones in the shop based on the information given by the shopkeeper.

### Step-by-Step Solution:

1. **Understanding the Information Given:**
- The shopkeeper has all Kyocera except three.
- The shopkeeper has all Nokia except three.
- The shopkeeper has all Samsung except three.
- The shopkeeper has all LG except three.

This means that for each brand, there are three cellphones that are not of that brand.

2. **Let’s Define the Variables:**
- Let \( K \) be the number of Kyocera phones.
- Let \( N \) be the number of Nokia phones.
- Let \( S \) be the number of Samsung phones.
- Let \( L \) be the number of LG phones.
- Let \( T \) be the total number of phones.

3. **Setting Up the Equations:**
- From the information given, we can set up the following equations:
- \( N + S + L = 3 \) (All Kyocera except three)
- \( K + S + L = 3 \) (All Nokia except three)
- \( K + N + L = 3 \) (All Samsung except three)
- \( K + N + S = 3 \) (All LG except three)

4. **Adding the Equations:**
- If we add all four equations, we get:
\[ (N + S + L) + (K + S + L) + (K + N + L) + (K + N + S) = 12 \]
- This simplifies to:
\[ 3K + 3N + 3S + 3L = 12 \]
- Dividing the entire equation by 3 gives:
\[ K + N + S + L = 4 \]

5. **Finding the Total Number of Phones:**
- The total number of phones \( T \) is equal to the sum of all the individual brands:
\[ T = K + N + S + L = 4 \]

6. **Conclusion:**
- Therefore, the total number of cellphones in the shop is \( T = 4 \).

### Final Answer:
The number of mobile phones he had is **4**.