Question

7, 18, 40,84, 172,? Should come in place of questions mark in number series

Answer 1

Answer:

238

Step-by-step explanation:

Explanation:-

7 + 1 x 11 = 7 + 11  

= 18,

18 + 2 x 11 = 18 + 22

= 40,

40 + 3 x 11 = 40 + 33

= 73,

73 + 4 x 11 = 73 + 44

= 117,

117 + 5 x 11 = 117 + 55

= 172

172 + 6 x 11= 238

Hence, the answer is 238.

Answer 2

The next term is 348.

Given: The given series is 7, 18, 40,84, 172.

To find: We have to find the next term.

Solution:

The series is 7, 18, 40,84, 172.

This series follows a specific pattern.

If we multiple 7 with 2 and add four we will get 18.

Again, if we multiple 18 with 2 and add four we will get 40.

Thus to determine the next term we have to multiple 172 with 2 and then add 4.

Thus, the next term will be-

$172 \times 2 + 4 = 348$

Thus, the next term is 348.