At Supermarket a lady bought 5 kg of rice and 7 kg

Question

At Supermarket a lady bought 5 kg of rice and 7 kg of flour for Rs 54, while her friend bought 2 kg rice and 3 kg of flour for Rs 22. Find the cost of 4 kg of rice and 4 kg of flour

srikar · Accepted Answer

let x = cost of 1 kg rice y = cost of 1 kg flour 5x + 7y = 54 =========> 10x + 14y = 1082x + 3y = 22 =========> 10x + 15y = 110 by solving y = 2 =====> cost of 1 kg flour is 2 Rs x = 8 =====> cost of 1 kg rice is 8 Rs =======> 4x + 4y = 40 Rs

8 grade maths> At Supermarket a lady bought 5 kg of rice...

At Supermarket a lady bought 5 kg of rice and 7 kg of flour for Rs 54, while her friend bought 2 kg rice and 3 kg of flour for Rs 22. Find the cost of 4 kg of rice and 4 kg of flour

shivam ghosh , 11 Years ago

srikar

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8 grade maths> At Supermarket a lady bought 5 kg of rice...

At Supermarket a lady bought 5 kg of rice and 7 kg of flour for Rs 54, while her friend bought 2 kg rice and 3 kg of flour for Rs 22. Find the cost of 4 kg of rice and 4 kg of flour

shivam ghosh , 11 Years ago

srikar

LIVE ONLINE CLASSES

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