If , then what is the value of .

If the speed of the boat in still water is 20 km / h and the speed of the stream is 5 km / h, then how long will it take for the ferry to travel 100 km with the speed of the stream?

A train crosses two persons travelling at 3 kmph and 5 kmph in the same direction in 10 seconds and 11 seconds respectively. The speed of the train is:

If the product of two numbers is 4941 and their LCM is 81, then their HCF is:

Directions: Study the information given below and answer the questions that follow.
An article was bought for Rs. 5600. Its price was marked up by 12%. Thereafter it was sold at a discount of 5% on the marked price.

What was the percent profit on the transaction?

What is the value of

Direction: Study the following graph and answer the given question.

What was the difference between the average amount invested in raw materials during the given period and the average value of sales of finished goods during this period?

A ladder rests against a wall at a height of 10 meters. If the ladder makes 30° along the ground. Find the distance from the wall of the foot of the ladder.