sandhya has 70rs which is just enough to pay for 3 kg of tomatoes and 4 kg of potatoes. if she wants to buy 4 kg of tomatoes and 3 kg of potatoes,she would need another 3.50rs. find the cost of 1 kg of tomatoes.
(HINT:ANSWER IS 12 RS)
please solve it ASAP
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Answered by
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Answer:
LET THE COST OF ONE KG TOMATOES BE X
"""" POTATOES=Y
ATQ
3X+4Y=70 (1)
AND
4X+3Y=73.5 (2)
ADDING 1 N 2
7X+7Y=143.5
⇒X+Y=20.5 (3)
SUBTRACTING 2-1
⇒X-Y=3.5 (4)
ADDING 3 AND 4
⇒2X=24
⇒X= RS 12
Step-by-step explanation:
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Answer:
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