MP Police PC · Science & Simple Arithmetic
Mean and weighted average.
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Q1 · Average · EASY
The average of five numbers is 36. If one number is excluded, the average of the remaining four numbers becomes 32. What is the excluded number?
Q2 · Average · MEDIUM
A police constable travels 4 km at 20 km/h, 6 km at 30 km/h, and 10 km at 40 km/h. What is his average speed for the entire journey?
Q3 · Average · MEDIUM
The average weight of 25 constables is 68 kg. If the weight of the officer is included, the average weight increases by 2 kg. What is the weight of the officer?
Q4 · Average · HARD
The average of 10 numbers is 40. The average of the first 6 numbers is 35 and the average of the last 5 numbers is 45. What is the 6th number?
Q5 · Average · EASY
The average of five numbers is 42. If one number is excluded, the average becomes 40. What is the excluded number?