Question

29. There is 26% iron in a mixture. To find 91 kg
Iron, how much mixture we need?
(a) 450 kg
(b) 240 kg
(c) 250 kg
(d) 350 kg
(e) None of these [Bank Clerks 2009)
30. Because of scarcity of rainfall, the price of a
land decreases by 12% and its production also
decreases by 4%. What is the total effect on
revenue?
(a) Loss of 16%
(b) Gain of 15%
(c) Loss of 15.48%
(d) Gain of 15,48%
(e) Loss of 15.52%
ILIC ADO 2008]​

Answer 1

Step-by-step explanation:

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Answer 2

Fractional value of iron in the mixture will be

$26\%=\frac{13}{50}$

if the mixture is 50kg then the amount of iron will be 13kg

amount of mixture required for 1kg iron $\frac{50}{13}$

amount of mixture required for 91kg iron $\frac{50}{13} \times 91$

$\frac{50}{13}\times 91=350kg$

so 350kg mixture will be required for 91kg iron

Learn more about percentage concept:

https://brainly.in/question/49249610

https://brainly.in/textbook-solutions/q-percentage-calcium-calcium-carbonate

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