The average height of 20 students increased by 1 inch when one of them whose height is 3ft. 4 inches is replaced by a new student. What is the height of the new student?
Amit went shopping and he has to pick two red shirts from 6 red and 4 white shirts. What is the probability of getting red shirts if he picks randomly?
If the average of a, b, and 26 is 18, then what is the average of a and b?
Which of the following has the least number of divisors?
Find the median of the frequency distribution:
| Marks obtained | Number of students |
| 30–33 | 3 |
| 33–36 | 5 |
| 36–39 | 6 |
| 39–42 | 7 |
| 42–45 | 9 |
The value of (log5(25)) (log4(27)) (log3(16)) (log2(4)) is:
What is the greatest number which on dividing 140 and 100 leaves remainder 2 and 8 respectively?
4(Mode) + 6(Median) – 7(Mean)
Evaluate the above expression for the following set of numbers.
7, 10, 3, 3, 4, 5, 7, 7, 3, 4, 4, 3, 3, 7
Find value of .
In a movie theatre, 5 boys and 3 girls are to be seated in a row such that girls should occupy odd places. How many such arrangements are possible?
