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CBSE Class 7 Answered

a sum of rs.640 is distributed among three girls A,B and c. B get 70 more than A. C get 80 more than B. find the share of  B  
Asked by sourabhjaat18 | 30 Jul, 2018, 09:25: PM
answered-by-expert Expert Answer
begin mathsize 16px style Let space the space share space of space straight A space equals space straight x
rightwards double arrow the space share space of space straight B space equals space straight x space plus space 70
rightwards double arrow the space share space of space straight C space equals space straight x space plus space 70 space plus 80 space equals space straight x space plus space 150
According space to space the space condition comma space we space get
straight x space plus space straight x space plus space 70 space plus space straight x space plus space 150 space equals space 640
rightwards double arrow 3 straight x space plus space 220 space equals space 640
rightwards double arrow 3 straight x space equals space 420
rightwards double arrow straight x space equals space 140
the space share space of space straight B space equals space straight x space plus space 70 space equals space 140 space plus space 70 space equals Rs. space 210 end style
Answered by Yasmeen Khan | 31 Jul, 2018, 10:33: AM
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