14 गाजर और 17 नारियल की कुल लागत
146 रुपये है, जबकि 17 गाजर और 14
नारियल की कुल लागत 164 रुपये है। 5
गाजर और 2 नारियल का मूल्य क्या है?
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Step-by-step explanation:
let the cost of gaajar be rs X
cost of nariyal be rs y
14x + 17y = 146 eq.( 1 )
17x + 14y = 164 eq.( 2 )
multiply eq. (1)st by 17 and (2)nd. by 14 ,we get
238x + 289y = 2482 eq.(3)
238x + 196y = 2296 eq.(4)
subtracting eq. (4) by eq. (3)
93y = 186
y = 186/93
y = 2
putting the value of y in eq. (1)
14x + 17 × 2 = 146
X = 146 - 34/14
X = 112/14
X = 8
cost of gaajar = rs 8
cost of nariyal = rs 2
cost of 5 gaajar = 5 × 8 = rs40
cost of 2 nariyal = 2× 2 = rs4
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