Which number will come in place of
X and Y?
3 7 4 6 21 12 12 84 36 24 420 X Y.
Answers
X = 108 & Y = 48 in 3 7 4 6 21 12 12 84 36 24 420 X Y.
Step-by-step explanation:
3 7 4 6 21 12 12 84 36 24 420 X Y.
three alternate series going on
3 6 12 24 Y
7 21 84 420
4 12 36 X
3 6 12 24 Y
Next term is multiplication with2 with prevoius term
3 * 2 = 6
6 * 2= 12
12 * 2 = 24
24 * 2 = 48 = Y
4 12 36 X
Next term is multiplication with2 with prevoius term
4 * 3 = 12
12 * 3 = 36
36 * 3 = 108 = X
7 21 84 420 not required to solve for answer
but
7 * 3 = 21
21 * 4 = 84
84 * 5 = 420
420 * 6 = 2520
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The number come in place of X and Y are 108 and 48 respectively.
Step-by-step explanation:
Consider the provided series.
3 7 4 6 21 12 12 84 36 24 420 X Y.
Observe the pattern as shown in figure.
First term (i.e 3) is associated with 4th term (i.e 6) as 3×2=6
4th term (i.e 6) is associated with 7th term (i.e 12) as 6×2=12
7th term (i.e 12) is associated with 10th term (i.e 24) as 12×2=24
10th term (i.e 24) is associated with 13th term (i.e Y) as 24×2=48
Similarly,
3rd term (i.e 4) is associated with 6th term (i.e 12) as 4×3=12
6th term (i.e 12) is associated with 9th term (i.e 36) as 12×3=36
9th term (i.e 36) is associated with 12th term (i.e X) as 36×3=108
From the pattern is clear that the value of X and Y is 108 and 48 respectively.
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