The average weight of Shivam, Rupesh and Mandar is 46 kg. If the average weight of Shivam and Rupesh be 39 kg and that of Rupesh and Mandar be 48 kg, then the weight of Rupesh (in kg) is:
Given:
Average weight of Shivam, Rupesh, and Mandar = 46 kg
Average weight of Shivam and Rupesh = 39 kg
Average weight of Rupesh and Mandar = 48 kg
Formula Used:
Average =
Solution:
Let weights be:
Shivam = S, Rupesh = R, Mandar = M
From the given:
Subtract (2) from (1):
(S + R + M) - (S + R) = 138 - 78
M = 60
Now from (3):
R + M = 96
R + 60 = 96
R = 36 kg
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60 Mins English English20 Questions40 Marks25 Mins English English100 Questions200 Marks60 Mins EnglishThe average age of 31 students of a class is 30 years. If the age of the teacher is also included, the average age of the whole group becomes 31 years. The age (in years) of the teacher is:
The average age of 31 students of a class is 30 years. If the age of the teacher is also included, the average age of the whole group becomes 31 years. The age (in years) of the teacher is:
The average of 50 numbers is 38 . If two numbers 45 and 55 are excluded, then what will be the average of the remaining numbers?
The average of 13 numbers is 7. If each number is multiplied by 2, then what will the new average be?
A cricketer has an average of 88 runs over 10 innings. If he scores 219 runs in the 11th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A cricketer has an average of 68 runs over 9 innings. If he scores 130 runs in the 10th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A cricketer has an average of 62 runs over 5 innings. If he scores 296 runs in the 6th inning, by how many runs does his average score increase?
A class of 93 students took a Physics test. 10 students had an average score of 90. The remaining students had an average score of 75. What is the average score (rounded off to one decimal place) of the whole class?
A cricketer has an average of 57 runs over 10 innings. If he scores 195 runs in the 11th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A student's marks were incorrectly entered as 24 instead of 52. Due to this error, the average marks of the class decreased by 1.4. What is the number of students in the class?
Suggested Test Series
Suggested Test Series
The average age of 31 students of a class is 30 years. If the age of the teacher is also included, the average age of the whole group becomes 31 years. The age (in years) of the teacher is:
The average age of 31 students of a class is 30 years. If the age of the teacher is also included, the average age of the whole group becomes 31 years. The age (in years) of the teacher is:
The average of 50 numbers is 38 . If two numbers 45 and 55 are excluded, then what will be the average of the remaining numbers?
The average of 13 numbers is 7. If each number is multiplied by 2, then what will the new average be?
A cricketer has an average of 88 runs over 10 innings. If he scores 219 runs in the 11th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A cricketer has an average of 68 runs over 9 innings. If he scores 130 runs in the 10th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A cricketer has an average of 62 runs over 5 innings. If he scores 296 runs in the 6th inning, by how many runs does his average score increase?
A class of 93 students took a Physics test. 10 students had an average score of 90. The remaining students had an average score of 75. What is the average score (rounded off to one decimal place) of the whole class?
A cricketer has an average of 57 runs over 10 innings. If he scores 195 runs in the 11th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A student's marks were incorrectly entered as 24 instead of 52. Due to this error, the average marks of the class decreased by 1.4. What is the number of students in the class?
