87, 95, 79, 111, 47, ?

5, 11, 23, 47, 95, …

41, 43, 47, 53, 59, 59, ?, 67, 71, 73, 79, ?, 89, 97

Find the missing term ? 5, 11, 23, 47, 95, ?

Which of the following numbers are perfect squares ? 11, 12, 16, 32, 36, 50, 64, 79, 81, 111, 121

11, 13, 17, 25, 32, 37, 47, ?, 71, 79, ?, 109, 119, ?

Calculate average deviation from the data of marks obtained by 10 students . 90 , 64 , 79 , 33 , 85 , 59 , 60 , 70 , 40, 95

The marks scored by 40 students of class IX in mathematics are given below: 81, 56, 68, 79, 85, 13, 29, 68, 54, 73, 47, 35, 72, 64, 95, 44, 50, 77, 64, 35, 79, 52, 45, 54, 70, 83, 62, 64, 72, 92, 84, 76, 63, 43, 54, 38, 73, 68, 52, 54. Prepare a frequency distribution with class size of 10 marks.

100, 104, 95, 111, 86, ?