M4maths Maths Puzzle Numerical Ability

What is the next number of the following sequence
13, 34, 74, 170, 290, ..............
OPTIONS
1) 359
2) 389
3) 421
4) 458
5) 471
6) 497
7) 505
8) 530
9) 555
10)595

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M4maths Other Question

What is the next number of the following sequence
13, 34, 74, 170, 290, .............. The sum of ages of Mac and Jabi is 26 times the difference of their ages. Maximum possible difference of the ages is 10 years. How many possibilities for ages of the two persons are possible. Ages are taken in integers