Question

If the price of rice is increased by 15%, by how much per cent should a homemaker
reduce the consumption of rice so that the expenditure remains the same?

PLZ SOLVE STEP BY STEP​

Answer 1

Answer:

Given expression is 2x3 – x2 – px - 2 and x – 2 is the factor.

(i) x – 2 = 0, x = 2 in expression

2(2)3 – (2)2 – p(2) – 2 = 0

16 – 4 – 2p – 2 = 0

10 – 2p = 0

p = 5

Answer 2

Answer:

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Step-by-step explanation:

Let's consider originally for consumption of 100kg rice is rupees 100Now it's increased by 30 percentNew price for 100kg of rice is rupees 130But consumption is reduced in order to pay rupees 100. 100 ———130. ? —————100Therefore need to buy (100×100) ÷130 =1000/13Therefore consumption of rice is to be reduce by 100 - (1000÷13)300 ÷13Percentage reduce =(300/13) ×100/100= 23 1/13