Nina travels in a car from point A to B. C is the midpoint between A and B. The car's speed while travelling from A to C is 20 m/s and from C to B is 21600 m/hr. If the total journey was covered in 780 minutes, then what is the distance between point A and B in kilometers?

Nina is running along the boundary of a rectangular ground at a speed of 8.4 km/h. She completes one round in 11 minutes. If the ratio of length and breadth of the ground is 6:5, then what is the area of the ground?

How many meters is 23.5 decimeters equal to?

A wire of 2.8 mm diameter is produced using 154 cubic centimeters of copper. Which of the following is the length of the wire in meters?

A car travels from point A to point B. The car stops at two points, X and Z during the journey. The distance from point A to X is 3480 yards, from point X to Z is 786900 decimeters, and from point Z to B is 7.80 miles.

What is the distance from point A to B in kilometers?

Mark covers a distance of 22.5 miles in 12 minutes. What is his speed in meters per second?

The length of one side of a rectangle is 0.2 miles and the second side is 14 yards. What is the approximate value of the perimeter of the rectangle in centimeters?

Given that the speed of car A and B is in the ratio 4:7. If the speed of car A is 320 miles/ hour, then the speed of car B will be ________________ meters/ second.

There are _______ inches in 15 meters.

After four years, Nina's age will be three times the age of her niece. At present, Nina is 224 months older than her niece. What was Nina's age before 65 months?

A group has 7 persons. When a person with 58 kg weight is replaced by another person, the average weight of the group is increased by 10.803 pounds. What is the correct weight of the new person?