Question

17, 33, 70, 131, 278, ?. Find the missing number in the given series.

Answer 1

Answer:

531

Step-by-step explanation:

multiply the numbers with 2 and add,subtract perfect square numbers to get the next number alternatively

• 17×2=34 ⇒34-(1)²=33
• 33×2=66⇒66+(2)²⇒66+4=70
• 70×2=140⇒140-(3)²⇒140-9=131
• 131×2=262⇒262+(4)²⇒262+16=278

• 278×2=556⇒556-(5)²⇒556-25=531

∴the missing number in the sequence is 531  

hope it helps you