complete the series 9 : 81 : : 13:? The answer is 72..How??
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Answer:
hloo dear,
lets solve,
9:81::13:?
we know that product of mean= product of exterms
let 13:x
equation formed=
9x = 81×13
9x = 1053
x = 1053/9
x = 117
thank you dear
sohailanjum2018:
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Answered by
3
The series form is 9 : 81 : : 13: 117.
Step-by-step explanation:
Given : Series 9 : 81 : : 13:?
To find : Complete the series ?
Solution :
Let the missing number be 'x'.
Series 9 : 81 : : 13: x
We know, If then
Here, a=9, b=81, c=13 and d=x
Substitute,
Cross multiply,
Therefore, the series form is 9 : 81 : : 13: 117.
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