1) 27, 44, 71, 108, 155
34, a, b, c, d, e
What value should replace e?

2) 108, 52, 24, 10, 3
64, a, b,c , d, e
What is the value of c?

3) 1296, 864, 576, 384, 256
1080, a, b, c, d, e
What should replace c?

4) 4, 14, 36, 114, 460
2, a, b, c, d, e
Find the value of e.

5) 575, 552, 533, 518, 507
225, a, b, c, d, e
Find the value of e.

6) 9, 19, 39, 79, 159
7, a, b, c, d, e
What is the value of e?

7) 5, 6, 11, 28,71, 160
2, 3, a, b, c, d, e
What is the value of e?

8) 9,19, 39, 79, 159
7, a, b, c, d, e
What is the value of e?

9)How many numbers lying between 100 and 1000 can be formed with the digits 1, 2, 3, 4, 5 if the repetition of digits is not allowed?

10) How many different words can be formed with the letters of the ‘MISSISSIPPI’?