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Question

Michael lives 10 km away from where I live. Ahmed lives 5 km away and Susan lives 7 km away from where I live. Arun is farther away than Ahmed but closer than Susan from where I live. From the information provided here, what is one possible distance (in km) at which I live from Arun’s place?

The correct answer is

6.02

To determine a possible distance at which Arun lives from the narrator's place, we need to interpret the given information about the distances of Michael, Ahmed, and Susan, and then apply the conditions provided for Arun's location.

Understanding Given Distances

First, let's list the known distances from where the narrator lives to each person's place:

  • Michael's distance: 10 km
  • Ahmed's distance: 5 km
  • Susan's distance: 7 km

Arun's Distance Range Determination

The problem states two specific conditions regarding Arun's distance:

  1. Arun is farther away than Ahmed.
  2. Arun is closer than Susan.

Let's use \(D_{Arun}\) to represent the distance of Arun from the narrator's place.

Condition 1: Arun is Farther Away Than Ahmed

Ahmed lives 5 km away. If Arun is farther away than Ahmed, it means Arun's distance must be strictly greater than Ahmed's distance.

Mathematically, this can be written as:

\(D_{Arun} > \text{Ahmed's distance}\)

\(D_{Arun} > 5 \text{ km}\)

Condition 2: Arun is Closer Than Susan

Susan lives 7 km away. If Arun is closer than Susan, it means Arun's distance must be strictly less than Susan's distance.

Mathematically, this can be written as:

\(D_{Arun} < \text{Susan's distance}\)

\(D_{Arun} < 7 \text{ km}\)

Combining Arun's Distance Conditions

By combining both conditions, we can establish a precise range for Arun's distance. Arun's distance must be greater than 5 km AND less than 7 km.

So, the possible range for Arun's distance is:

\(5 \text{ km} < D_{Arun} < 7 \text{ km}\)

This means Arun lives at any distance between 5 km and 7 km, but not exactly 5 km or 7 km.

Checking Given Options for Possible Distance

Now, let's examine the provided options to identify which one falls within the calculated range of \(5 \text{ km} < D_{Arun} < 7 \text{ km}\).

Option Distance (km) Satisfies \(5 < D_{Arun} < 7\)? Explanation
1 3.00 No 3.00 is not greater than 5.
2 4.99 No 4.99 is not greater than 5.
3 6.02 Yes 6.02 is greater than 5 (6.02 > 5) AND 6.02 is less than 7 (6.02 < 7). This distance fits the criteria.
4 7.01 No 7.01 is not less than 7.

Based on our analysis, only 6.02 km falls within the specified range for Arun's distance. Therefore, 6.02 km is a possible distance at which the narrator lives from Arun's place.

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Important Questions from Numerical Reasoning

  1. Among 150 faculty members in an institute, 55 are connected with each other through Facebook and 85 are connected through WhatsApp. 30 faculty members do not have Facebook or WhatsApp accounts. The number of faculty members connected only through Facebook accounts is ______________.

  2. X is 1 km northeast of Y. Y is 1 km southeast of Z. W is 1 km west of Z. P is 1 km south of W. Q is 1 km east of P. What is the distance between X and Q in km?

  3. Two numbers are, respectively, 28% and 25% less than a third number. What percent is the first number of the second number?
  4. A dealer sold three-forth (3/4th) of his articles at a gain of 20% and the remaining articles at the cost price. Find the gain earned by him in the whole transaction.

  5. 78, 65, 82, 69, 86, ?

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