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Instructions
Seven poles A, B, C, D, E, F and G are put in such a way that the distance between the next two decreases by 1 metre. The distance between the first two poles, A and B,is 10 metres, Now answer the following questions?
Question 148
If the authorities decide to remove one pole and place the remaining on equal distances among the poles, then each set of two poles would be .......... metres apart.
Solution
Distance between A and B = 10m
Distance between B and C = 9m
Distance between C and D = 8m
Distance between D and E = 7m
Distance between E and F = 6m
Distance between F and G = 5m
Total distance = 45m
Since one pole is removed, we now need to place only 6 poles => 5 equal spaces = 45/5 = 9m
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