Question
What is the chemical formula of baking
soda?Solution
The correct answer is A
In an Aerobic class, the average age of all the members was 54.5 years, 11 members left the class and 7 new members joined. If the average age increased...
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 ...
The average of three numbers is 21. The first number is double the second, and the third number is double the first. Calculate the sum of the first and ...
If average of first 10 numbers is (n – 46) and the sum of remaining number is 1850. Find the value of ‘n’, if the average of 20 numbers is ‘n’...
The average weight of 4 persons is 50 kg. The heaviest person’s weight is 20 kg more than the lightest person’s weight. If the average weight of the...
The average weight of 4 persons is 30 kg. The heaviest person’s weight is 24 kg more than the lightest person’s weight. If the average weight of the...
Average of four numbers is 25. Sum of smallest and largest number is 54. If difference between other two numbers is 2, then find the square of second sm...
Average age of company A is 22 years and average age of both companies A and B is 14 years. If the ratio of number of employees in company A and B is 3:...
The average marks of 35 Spanish students in a mathematics exam is 75. If the marks of their teacher are included, the average increases by 1. Find the...
The average weight of a group of 15 students increases by 1.5 kg when the weight of the teacher is also included. If earlier the average weight of the g...
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