Question
A capacitor filled with dielectric constant K is
connected to a battery. If dielectric is removed, how much charge flows back?Solution
The average weight of 7 boxes P, Q, R, S, T, U and V is 72kg. Another box A is added to group and the average now becomes 70kg. If another box C whose ...
- The average score of Neha in 5 subjects was recorded as 62. However, her marks in Science and History were mistakenly entered as 49 and 60 instead of 59 an...
Average weight of a team of 10 persons is 30 kg. When one more person joins the team, the average weight of the team increases by 3 kg. Find the weight ...
- The mean of 60 numbers is 105. Calculate the new mean if all numbers are multiplied by 4.
The average number of taxis of three colours (black, white and yellow) in a taxi stand is 155. The number of black taxis is 60 more than that of yellow ...
The average of four numbers (z+16), (y+15), (y-25) and 1.2z is (y-6). If one more number which is 144 is added then the new average will be (y-1). The v...
Average age of A, B and C is 20 years. Average age of B and C was 12 years when A was born. If B is 21 years old, then, find the age of C, 6 years hence.
The average of 75 percent of x and 48 percent of y is 90. What will be the average of 125 percent of x and 80 percent of y?
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced t...
The average weight of 28 students in a class is 40 kg while the average weight of 5 teachers who teach them is 58 kg. 10 students and 1 teacher go for a...
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