Question
A class of 30 students appeared in a test. The average
score of 12 students is 80, and that of the rest is 75. What is the average score of the class?Solution
To find the average score of the entire class, Calculate the total score of the first group (12 students with an average score of 80) = 12×80 = 960 Calculate the total score of the second group (18 students with an average score of 75) = 18×75 = 1350 Add the total scores of both groups = 960+1350 = 2310 Divide the total score by the total number of students (30) = 2310/30 = 77
__________is the process that connects to a network without the use of cables.
If × stands for addition, ÷ stands for subtraction. + stands for multiplication and ̶ stands for division, then what is the value of 20 &t...
A sum of Rs. 663 is divided among X, Y and Z such that X gets Rs. 156 more than Y. Y gets Rs. 78 more than Z. Find the share of Z?
In a mixture 'P', 5 liters of water are replaced with honey, resulting in the mixture containing 55% honey. If the original mixtu...
A ________________ typically connects personal computers within a very limited geographical area, usually within a single building.
Formatting a disk means?
A sum of Rs.8200 is to be divided among 6 brothers, 5 sisters and 2 aunts. If each sister receives thrice as much as each aunt and each brother receives...
Ehsaan is twice as good a worker as Kamal and together they finish a piece of work in 29 days. In how many days will Kamal, working alone, finish the wo...
₹ 1,800 is divided among Nitin, Tushar and Gitanjali. The share of Gitanjali is 5/4 of the sum of the shares of Nitin and Tushar. What is the share of...
The number of five–digit telephone numbers having at least one of their digits repeated is
Relevant for Exams:
