Question

3, 10, 29, 84, ? - Find the missing number in the place of question mark​

Answer 1

Answer:

247

Step-by-step explanation:

given numbers :

3 , 10 , 29 , 84

(10 × 3) - 1 = 29

( 29 × 3 ) - 3 = 84

(84 × 3 ) - 5 = 247

So the next number is 247

Answer 2

The answer is 247.

Step-by-step explanation:

In the given series 3, 10, 29, 84, ?, it can be observed that:

The second number (10) is one more than three times the first number(3)

• , i.e. $(3\times3)+1 = 10$

The third number (29) is one less than three times the second number(10)

• , i.e. $(3\times10)-1 = 29$

The fourth number (84) is three less than three times the third number(29)

• , i.e. $(3\times29)-3 = 84$

Hence,

• The fifth number (?) will be five less than three times the fourth number(84) i.e. $(3\times84)-5 = 247$