Who among the following economists gave the concept of "economies of scale". Which says "many goods and services can be produced more cheaply in long series"?
What would be the next number in the series
9, 8, 18, 6, 36, 4, 72, 2, 144, ?
Here there are combination of two series.
1) 9, 18, 36, 72, 144
2) 8, 6, 4, 2, 0
The next number in the given series is 0.
The following groups of alphabets form a certain pattern with regard to their position in the English alphabetical series. Based upon the pattern, which of the following five alternatives shall replace the question mark?
813 967 429 295 648
If the positions of the second and third digits in each of the numbers are interchanged , which of the following will be the sum of the sum of the three digits of the highest number?
How many such digits are there in the number 84315269 each of which is as far away from the beginning of the number as when the digits are rearranged in ascending order?
Among P,Q, R, S, and T,each having a different weight, R is heavier than only P. S is lighter than Q and heavier than T. Who among them is the heaviest?
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