Question
Which country has the largest reserves of natural
gas?Solution
Russia holds the world's largest reserves of natural gas, primarily located in Siberia.
The mean weight of 24 men is 45 kg, while the mean weight of 18 women is 40 kg. Calculate the combined average weight of all the ...
There are three numbers 'g', 'h' and 'i' such that average of 'g' and 'h' is 16, average of 'h' and 'i' is 14 and average of 'g' and 'i' is 30. Find the...
The average age of three children is 20 years. If their ages are in the ratio 2:3:5. Find the age of the youngest child.
The average of the first four numbers is 'x+30', the average of the next 10 numbers is 'x', and the average of the remaining 6 numbers is 'x−20'. If t...
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Average run scored by a batsman in 20 innings is 88. In next 6 innings, he scored runs with an average of ‘x’ so that his overall average increases ...
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...
Average weight of all the people in a group is 66 kg. When two people of weight 72 kg and 84 kg left the group, average weight reduces by 1.2 kg. Find t...
