Question

Q. 47:125::?:343
(a). 10 (b). 12
(c). 06 (d). 09​

Answer 1

Answer:

Here let us try and find the rule that generates the given numbers. The first term is 3. The second is 6 and the third is 11. Often times, the number of the term (i.e. whether it is first, second, third or fourth) is very crucial. If we try this [term number]2 + 2, then we have:

First term = [1]2 + 2 = 3; which is the given first term. Second term of the series = [2]2 + 2 = 6; again the second term. And the third term = [3]2 + 2 = 11; which is the third term of the given series. Hence the rule is correct and we can use it to find the missing term. The missing term is = [4]2 + 2 = 18. Hence the answer is 12