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Market shares in four Metropolitan cities.

 Period/ Products Bombay 1993-94 Calcutta 1993-94 Delhi 1993-94 Madras 1993-94 HD 20-15 35-30 20-15 20-30 CO 20-25 30-15 15-10 20-15 BN 45-40 25-35 35-35 10-10 MT 15-20 10-20 10-10 50-45

The market shares of which products did not decrease between 1993-94 in any city?

1. HD
2. CO
3. BN
4. None of these

The $3^{rd}$ option must be $BN$

1.    If we take the product $HD$, we can see that the market share of $HD$ has been fallen in Bombay, Calcutta & Delhi between $93-94$.

So, the $1^{st}$ option is wrong.

2.    If we take the product $CO$, the market share of product $CO$ is decreased in Calcutta, Delhi & Madras.

So, the $2^{nd}$ option also didn't satisfy the criteria.

3.    Now, the product $BN$, $BN's$ market share also been decreased in Bombay in 93-94.

So, all the three options are rejected.

The answer will be $\color{green}{\text{Option D)}}$ $\color{red}{\text{None of these}}$
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