Question
If the sum of n numbers in the GP 3, 6, 12, ... is 765
then n is?Solution
Given series is 3, 6, 12, ... Here, a = 3, r = 2 Sum of n numbers = Sn= 765 As we know that, Sum of n terms of GP = Sn = a(rn – 1)/(r – 1); where r >1 Sn = 765 = 3 × (2n – 1) ⇒ 255 = (2n – 1) ⇒ 2n = 256 ⇒ 2n = 28 ⇒ n = 8
Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
Find the ODD one out from the given options.
Find the odd one out
Understand the logic in the given words and choose the odd one out.
Three of the following words are alike in some manner and hence form a group. Which word does NOT belong to that group? (The words must be considered a...
Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.
Find the odd numeral pair in each of the following questions.
Select the option in which the numbers do not share the same relationship as that shared by the given pair of numbers.
34 : 408
Pick out the different one:
Find the odd one out of the choices given therein.
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