Question
If a mirror is placed on the line AB, then which of the
answer figures is the right image of the given figure?Solution
The correct answer is C
The meaning of 12 observations is 15. One more observation is included, and the new mean becomes 17. The 13th observation is.
The mean of 15 values is 72. The mean of the first seven values is 62, and the mean of the last five values is 86. The eighth value equals 25% of the ni...
The batting average for 40 innings of a cricket player is 50 runs. His highest score exceeds his lowest score by 172 runs, If these two innings are excl...
The ages of 5 children are 6, 8, 10, 12 and 14 years. Find their average age.
- A group consists of a certain number of individuals. If two members, each weighing 59 kg, leave the group, the average weight of the remaining members decr...
A cricketer scored an average of 80 runs per match in the first 22 matches. In his next 8 matches, he scored runs with an average of ‘x’ runs per ma...
The average of five even numbers is 64. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
Find the average of prime numbers between 10 and 20 .
There are 40 elements in a data set and their average is 75. If every element is scaled by a factor of 12, compute the new average.
The average of the current ages of 'Anoop', 'Bhanu', and 'Rakesh' is 40 years. Their ages are in arithmetic progression (AP), wit...
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