Missing number in the series 9, ____, 6561, 43046721 is: 81 25 62 31 18 9. one number is 2 more than 3 times another. their sum is 22. find the numbers. 8, 14 5, 17 2, 20 4, 18 10, 12 10. the missing number in the series 1, 4, 27,____, 3125 is: 81 35 729 256 115 11. the next number in the series 3, 4, 6, 7, 9, 10 is: 12 11 15 17 13 12. a farmer is planting a straight row of crops with 3 feet between each plant. if 23 are planted, what is the distance between the first and last plant? 72 66 69 63 75

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Missing number fom the series :  9, ….. , 6561, 43046721

43046721 is square of its previous number 6561, means

It means the missing number will be square of its previous number

Means , so missing number is 81.   :    Answer

Next : one number is 2 more than 3 times another. their sum is 22. find the numbers.

Suppose one number is x and second number is y

As per given equation,  ……equation (1)

Their sum is 22  means,   …….equation (2)

Putting the value of x from equation1 into equation 2

Subtracting 2 in both sides

Means numbers are 17 and 5.   : Answer

Next : the missing number in the series 1, 4, 27,____, 3125 is

1 could be written as 1

4 could be written as

27 could be written as

So , next number would be

Next one is

So, the missing number is 256   :    Answer

Next : the next number in the series 3, 4, 6, 7, 9, 10 is

After 3,4 (5) is mising, 6, 7 (8) is missing, 9, 10 (11) will be missing

So, next number will be 12.   : Answer

Next : a farmer is planting a straight row of crops with 3 feet between each plant. if 23 are planted, what is the distance between the first and last plant?

Between 2 plants, the distance is =

Between 3 plants, the distance is =

So, between 23 plants, the distance is =

hene the distance between first and last plant woule be 66 feet.   :   Answer

 

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