Question

The average weight of 40 passenger in a bus is 50kg , while the average weight of the passenger along with the driver and conductor is 51kg . What is the average weight of the driver and conductor

Answer 1

The average weight of 40 passengers = 50kg

The total weight of 40

passengers = 40*50 = 2000 kg

The average weight of 40 passengers with driver and conducter = 51 kg

The total weight of 40 passengers with driver and conducter = 51*40 = 2040 kg

the weight of

driver and conducter = 2040 - 2000 = 40 kg

Answer 2

The Average Weight of the Driver and Conductor is 71 kg.

Given,

The average weight of 40 passengers is 50 kg

The average weight of 40 passengers, a driver, and a conductor is 51 kg

To Find,

Average Weight of Driver and Conductor

Solution,

Average Weight = $\frac{Sum of weight of all the passengers }{Total number of passengers}$

50 = $\frac{Sum of weight of all the passengers }{40}$

Weight of all the passengers = 50 * 40 = 2000 kg

51 = $\frac{Weight of all passengers + weight of driver + weight of conductor}{42}$

Sum of the weight of driver and conductor + Weight of all the passengers = 51 * 42 = 2142 kg

Sum of Weight of Driver and Conductor = 2142 - 2000 kg

Sum of Weight of Driver and Conductor = 142 kg

Average Weight of Driver and Conductor = 142/2 kg = 71 kg

Thus, the Average Weight of the Driver and Conductor is 71 kg.

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