Question

Ranjit went to the market. He bought 10kg rice at Rs. X per kg,20kg of wheat
Y per kg and 7Kg of vegetables at Rs. Z per kg. If the total expenses were Rs.E, then
express E in terms of X, Y and Z.

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Answer 1

Answer:

} cost of 1 kg of rice=5 rs.

now cost of 20 kg=5×20= 100rs.

2} cost of 1 kg rice=7rs.

now cost of 35kg rice= 7×35=245rs

now total kg of rice= 55kg

now total cost price on rice=345rs

now selling of Rice per kg=6.50rs

now total selling price on rice= 6.5×55=357.5rs

noe profit= 357.5-345=12.5rs

now profit %=12.5/345×100=36.23%

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Answer 2

Answer:

(16(2.5)2)−4y2=1(i.e)4y2=1−166.25.°.y2=4(6.256.25−16).°.y2=4(6.259.75).°.y2=2.4375y=2.4375.°.y=1.56(approx).°.ac=1.56m.