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CBSE Class 10 Answered

sir/mam please will you provide me the answer of this query
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Asked by krishdabhoya2003 | 01 Mar, 2019, 11:10: PM
answered-by-expert Expert Answer
Running distance to pick the first potato and drop back to bucket = 10 m
 
Running distance to pick the second potato and drop back to bucket = 16 m
 
hence additional distance of running for picking subsequent potato compared to previous one = 6 m
 
This running distances are in Arithmetic progression with first term 10 m and common difference 6 m.
 
There are 10 potatoes, hence number of terms in A.P is 10.
 
Sum of running distances = (10/2) [ 2×10 + 9×6 ]  = 370 m
Answered by Thiyagarajan K | 02 Mar, 2019, 09:01: AM
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