Average weight of 25 students of a class is 50 kg. If the weight of the class teacher is included, the average is increased by 1 kg. The weight of the teacher is? Mark as favorite Copy Link 76 kg 77 kg 74 kg 75 kg Check Answer
In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course? Mark as favorite Copy Link 6 12 24 18 Check Answer
The average age of 14 girls and their teacher’s age is 15 years. If the teacher’s age is excluded,the average reduces by 1. What is the teacher’s age? Mark as favorite Copy Link 35 years 32 years 30 years 29 years Check Answer
The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is? Mark as favorite Copy Link 35 36.5 40 42 Check Answer
30 pens and 75 pencils altogether were purchased for 510. If the average price of a pencil was 2, what was the average price of a pen? Mark as favorite Copy Link 9 10 11 12 Check Answer
The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person? Mark as favorite Copy Link 70 kg 75 kg 80 kg 85 kg Check Answer
12 kg of rice costing 30 per kg is mixed with 8 kg of rice costing 40 per kg.The average per kg price of mixed rice is? Mark as favorite Copy Link 38 37 35 34 Check Answer
The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11.4, then the middle number is? Mark as favorite Copy Link 10.5 11.5 12.5 13.5 Check Answer
The average of 30 numbers is 12.The average of the first 20 of them is 11 and that of the next 9 is 10. The last number is? Mark as favorite Copy Link 60 45 40 50 Check Answer
The average of 11 results is 50. If the average of the first six results is 49 and that of the lastsix is 52, the sixth no. is? Mark as favorite Copy Link 48 50 52 56 Check Answer