find the number which will replace the '? in the given sequence: 1 , 2, 3, 7, 15, 24,51, 67 ?

Find the 30th term of the sequence: 1/2 , 1, 3/2 ,….

Which term of the sequence -1,3,7, 11 , ... is 95 ?

The median of 10 numbers is 22. Find the tenth number given that 9 of the numbers are 39, 7, 44, 10. 14, 16, 24, 35, and 29.

A pair of numbers is picked up randomly (without replacement) from the set {1,2,3,5,7,11,12,13,17,19}. The probability that the number 11 was picked given that the sum of the numbers was even is nearly 0. 1 b. 0. 125 c. 0. 24 d. 0. 18

Find the number of terms in the sequence 4,7,10,13…….,82.

Find the sum of first 14 terms of the sequence -3,3,9,15,…….

Find the mean of 28,24, 37,42,56,59,67,28,15 and 32.

Find the common difference of the A.P. and write the next two terms: 51 ,\ 59 ,\ 67 ,\ 75 ,\ dot (ii) 75 ,\ 67 ,\ 59 ,\ 51 ,\ ddot (iii) 1. 8 ,\ 2. 0 ,\ 2. 2 ,\ 2. 4 ,\ dot

Insert 6 numbers between 3 and 24 such that the resulting sequence is an A. P.

Find the greatest number of 4 digits which is exactly divisible by 15 , 24 and 36.