Question
What value will come in place of question mark (?) in
the following question? (9² × 23 + 7³ × 8 + ?) 1/2 = 87ÂSolution
The correct answer is C
The average weight of 4 persons is 40 kg. The heaviest person’s weight is 26 kg more than the lightest person’s weight. If the average weight of the...
The average of 27 numbers is 20.The average of first 13 numbers is 15 and that of the last 13 numbers is 18. What will be the 27th number?
If average of first 11 numbers is (n – 23) and the sum of remaining number is 925. Find the value of ‘n’, if the average of 25 numbers is ‘n’....
The average age of (x + 2) members in a committee is 22 years. When a 44-year-old chairman joins, the average age rises to 23 years. Find x% of 500.
The mean weight of 'w' students in a classroom is 42 kg. When the class teacher, weighing 61.5 kg, is added to the group, the average weight increases b...
In a company, the average age of 40 employees is 20 years. When the ages of two managers, one 'a' years old and the other 'a + 10' years old, are includ...
In a company, the average salary of 30 employees is ₹40,000. Out of these, the average salary of 20 employees is ₹35,000, and the average salary of ...
The average age of a group of 70 students is 13 years. If 3 students whose ages are 15 years, 21 years, and _____ years are replaced by 3 new students w...
The average mark obtained by 160 candidates in a certain examination is 60. If the average marks of passed candidates are 65 and that of the failed cand...
Average age of a class of 28 students is 10 years. Average age of the class is increased by 12 months if the age of the teacher is included. Find...
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