Data Interpretation Discussion

**Common Information**

The bar graph given below shows the sales of books (in thousand numbers) from six branches of a publishing company during two consecutive years 2000 and 2001.

Q. |
What percent of the average sales of branches $B1$, $B2$ and $B3$ in 2001 is the average sales of branches $B1$, $B3$ and $B6$ in 2000? |

✖ A. |
75% |

✖ B. |
77.5% |

✖ C. |
82.5% |

✔ D. |
87.5% |

**Solution:**

Option(**D**) is correct

Average sales (in thousand number) of branches $B1$, $B3$ and $B6$ in 2000:

$=\dfrac{1}{3}×(80 + 95 + 70)$

$=\dfrac{245}{3}$

Average sales (in thousand number) of branches $B1$, $B2$ and $B3$ in 2001:

$=\dfrac{1}{3}×(105 + 65 + 110)$

$=\dfrac{280}{3}$

Required percentage:

$=\left(\dfrac{245}{3}\right)×100%$

$=\left[\dfrac{(245/3)}{(280/3)}\right]× 100%$

$= 87.5%$

**Bitan**

*()
*

Then what is the correct answer?

All the options are wrong considering the question was right.