MCQ Bank

A motorboat travels downstream at a speed of 13 km/hr and upstream at a speed of 9 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 14 km/hr and upstream at a speed of 2 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 14 km/hr and upstream at a speed of 6 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 29 km/hr and upstream at a speed of 3 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 12 km/hr and upstream at a speed of 8 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 13 km/hr and upstream at a speed of 5 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 23 km/hr and upstream at a speed of 9 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 29 km/hr and upstream at a speed of 5 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 13 km/hr and upstream at a speed of 3 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 14 km/hr and upstream at a speed of 8 km/hr. What is the precise speed of the motorboat in completely still water?

A motorboat travels downstream at a speed of 27 km/hr and upstream at a speed of 11 km/hr. What is the precise speed of the motorboat in completely still water?

The average age of 13 students is 42 years. If the teacher's age is included, the new average becomes 43 years. What is the precise age of the teacher?

The average age of 8 students is 21 years. If the teacher's age is included, the new average becomes 22 years. What is the precise age of the teacher?

The average age of 9 students is 26 years. If the teacher's age is included, the new average becomes 28 years. What is the precise age of the teacher?

The average age of 8 students is 43 years. If the teacher's age is included, the new average becomes 45 years. What is the precise age of the teacher?

The average age of 12 students is 39 years. If the teacher's age is included, the new average becomes 40 years. What is the precise age of the teacher?

The average age of 7 students is 33 years. If the teacher's age is included, the new average becomes 35 years. What is the precise age of the teacher?

The average age of 8 students is 45 years. If the teacher's age is included, the new average becomes 47 years. What is the precise age of the teacher?

The average age of 7 students is 29 years. If the teacher's age is included, the new average becomes 32 years. What is the precise age of the teacher?

The average age of 14 students is 32 years. If the teacher's age is included, the new average becomes 34 years. What is the precise age of the teacher?