Question

The difference in times when a man covers a certain distance at 10 km/hr and 25 km/hr is 45 minutes, the distance is 8 km 12.5 km 9.5 km 15.5 km

Answer 1

assume that the distance that was travelled is x

then find the time with both velocities

find the difference between the times of both thst is equal to 45 min.

Answer 2

Answer:

The distance is 12.5 km. option B is the correct answer

Explanation:

The difference in times when a man covers a certain distance at 10 km/hr and 25 km/hr is 45 minutes.

From the question, we have

$t_1 = \frac{x}{10} \\t_2 = \frac{x}{25} \\\frac{x}{10} - \frac{x}{25} = \frac{45}{60} \\\frac{15x}{250} = \frac{2}{3} \\x = 12.5 km$

The distance is 12.5 km. option B is the correct answer

Subtraction:

The process of removing items from a collection is represented by subtraction. Subtraction is represented by the minus sign. If, for instance, there are nine oranges stacked together and four of those oranges are then moved to a basket, the stack will contain nine minus four oranges, or five oranges. As a result, 9 minus 4 equals 5, or the difference between 9 and 4. Incorporating subtraction into other types of numbers is possible in addition to using it with natural numbers. The symbol for subtraction is the letter "-". The three numerical elements that make up the subtraction operation are the minuend, the subtrahend, and the difference. As the first integer to be subtracted from in a subtraction phrase, a minuend is the first number in the subtraction process.

To learn more about subtraction visit:

brainly.in/question/51608484

brainly.in/question/1774967

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