Question

Can you find the missing number in the below series: 30, 45, 75, 105, 165 ?

Answer 1

GiVen:

• Series : 30, 45, 75, 105, 165, ?

AnsWer:

• Every number is multiple of 15.

• Then the multiple is said to be a prime number.

$\implies \sf \: 15 \times 2 = 30$

$\implies \sf \: 15 \times 3 = 45$

$\implies \sf \: 15 \times 5 = 75$

$\implies \sf \: 15 \times 7 = 105$

$\implies \sf \: 15 \times 11 = 165$

$\implies\sf \: 15 \times 13 = 195$

Here, 13 is a prime number.

Therefore, 195 is the next number.

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