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CBSE Class 10 Answered

when a princess slept,her pearl necklace broke.one-third of the pearls scattered on the bed and floor.the square of the number of pearls that fell on the floor was equal to the number that fell on the bed.if 60 pearls still remained on the neckolace,find the number that fell on the floor
Asked by amrithasai123 | 24 Feb, 2019, 11:52: AM
answered-by-expert Expert Answer
let space the space total space pearls space be space straight x
1 third straight x space fell space on space the space floor space and space bed
so space 2 over 3 straight x space remained space on space necklace
so comma
2 over 3 straight x equals 60
straight x equals 90 space pearls
so space 30 space fell space off
30 equals on space bed space plus space on space floor
open parentheses on space floor close parentheses squared equals on space bed
30 equals open parentheses on space floor close parentheses squared space plus space on space floor
30 equals straight f squared plus straight f
straight f squared plus straight f minus 30 equals 0
open parentheses straight f plus 6 close parentheses open parentheses straight f minus 5 close parentheses equals 0
straight f equals 5..... straight f space can apostrophe straight t space be space negative
so space on space floor space equals space 5 space pearls
Answered by Arun | 24 Feb, 2019, 12:07: PM
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