Question

5, 7, 18, 51, 69, __? What next ?

Options
1.) 343
2.) 342
3.) 345
4.)344

Answer 1

Answer:

Correct answer is 342

Step-by-step explanation:

Answer 2

Answer:

2.) 342

Step-by-step explanation:

The given sequence is shown below as:

The first and the second terms are related as shown below as:

7 = 5 * 2 - 3

The third and the forth terms are related as shown below as:

51 = 18 * 3 - 3

The sequence is multiply by next prime number and subtracting 3.

Thus, the sixth and the fifth terms are related as shown below as:

x = 69 * 5 - 3 = 342

Thus, the missing number is 342