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The correct answer is B
Nora claims her age is between 18 and 22 years. Her grandmother says Nora's age is between 20 and 24 years. Her aunt thinks her age is between 19 and 21...
Average marks scored by Vineet in five subjects are 65. The average marks scored by him (excluding his highest and lowest marks) are 50 and lowest marks...
The average age of 4 children in a family is 30% of the average age of the mother and the youngest child. The total age of the father and the eldest chi...
The average age of a group of 70 students is 14 years. If three students whose ages are 22years, 20years, ________ years is replaced with three new stud...
Average run scored by a batsman in first ‘x’ matches is 50. In next 16 matches he scored runs with an average of 70 so that his overall average incr...
The average marks scored by 30 boys and 40 girls are 75 and 85 respectively. Find the average marks scored by all the students together. (Answer should ...
A bowler gives 15 runs per wicket. He gives 30 runs and takes 5 wickets in a last match after which his average becomes 13.5 runs per wicket. How many w...
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.
What is the average of the squares of the first 41 natural numbers?
The average cost price of 15 pens (having equal cost price) decreased by Rs.2, when one of the pen is replaced by a new pen having cost price of Rs.70. ...
