Math, asked by mohammedayaanhy, 1 year ago

Answer pls uvsvsjvjsbjbkbsibks

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Answered by TheLostMonk
3
question 3:
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. let the cost price of 1 article = Rs 1

c.p of 10 article = 10× 1 = Rs 10

c. p of 10 articles = s.p of 9 articles

c. p of 9 articles = Rs 9

gain = 10 - 9 = Rs 1

gain% = (gain × 100)/ c.p

=( 1 × 100)/ 9 = 100/ 9 % = 11 1/ 9 %

= 11.11 %

Answer: gain = 11.11%

question: 6.
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c.p of 3 egg = Rs 5

c.p of 1 egg = 5 ÷ 3 = 5/ 3

c. p of 5 eggs = 5 × 5/3

= Rs 25 /3

s.p of 5 egg = Rs 12

gain = 12 - ( 25/ 3)

= (36 - 25)/ 3 = Rs 11/ 3

gain% = (11/ 3 × 100)/ 25/ 3

= 1100 / 25 = 44%

44% = 143

1 % = 3.25

100% = Rs 325

number of eggs that he purchased

= 325 ÷ (5/ 3)

= (325 × 3)/ 5

= 195 eggs

question no. 8 :
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c.p of 2 fans = Rs 3605

let c.p of first = x

c.p second fan = 3605 - x

since, amount she got for both after selling it is same . then


s.p of 1st fan = s.p of 2nd fan

x + 15% of x = 3605 - 9% of(3605 - x)


1.15x = 3605 - 324.55 + 0.09x

1.06x = 3280.55

x = 3094.85


c.p of first fan = Rs 3094.85

c.p of second fan = 3605 -x

= 3605 - 3094.85 Rs = Rs 510.15
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