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Comparing Quantities Test - 41

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Comparing Quantities Test - 41
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  • Question 1
    1 / -0
    A shopkeeper buys an article at a rebate of $$20\%$$ on its marked price and then spends $$Rs. 300$$ on its transportation, etc. If he sells the article for $$Rs. 4,160$$ (including sales tax at the rate of $$4\%$$ of the marked price), find the shopkeeper's profit as per cent.
    Solution
    Let $$M.P$$ is $$Rs.x$$
    Rebate=$$20\%$$
    Then the money shopkeeper spend on buying$$=x-20\% ~of~ x+300$$
    $$\Rightarrow x-0.20x+300=0.80x+300$$
    $$S.P=4160$$(including sales tax)
    Rate of sales tax$$=4\%$$
    $$\therefore x+4\% ~ of~ x=4160$$
    $$\Rightarrow x+\dfrac{4}{100}x=4160$$
    $$\Rightarrow x+0.04x=4160$$
    $$\Rightarrow 1.04x=4160$$
    $$\Rightarrow x=\dfrac{4160}{1.04}=Rs.4000$$
    Profit$$=4000-(.8\times 4000+300)=4000-3500=Rs.500$$
    Profit%$$=\dfrac{500}{3500}\times 100$$
                $$=\dfrac{100}{7}$$
                $$=14\dfrac{2}{7}$$%
  • Question 2
    1 / -0

    Directions For Questions

    Tarun bought an article for Rs. 8,000 and spent Rs. 1,000 for transportation. He marked the article at Rs. 11,700 and sold it to a customer. If the customer had to pay 10% sales tax find:

    ...view full instructions

    the customer's price
    Solution
    M.P=Rs. 11700
    Sales tax=10%
    $$\therefore $$Customer price$$=11700+10\% of 11700$$
    $$\Rightarrow 11700+\frac{10}{100}\times 11700$$
    $$\Rightarrow  11700+1170=Rs.12870$$
  • Question 3
    1 / -0

    Directions For Questions

    An article is marked at Rs. $$500$$. The wholesaler sells it to a retailer at $$20\%$$ discount and charges sales-tax on the remaining price at $$12.5\%$$. The reatailer, in turn, sells the article to a customer at its marked price and charges sales-tax at the same rate. Calculate:

    ...view full instructions

    The price paid by the customer
    Solution
    Marked Price of the article=Rs.500
    The retailer sell the article to the customer at marked price at 12.5% sales-tax
    Then price paid by the customer=500+12.5% of 500
    $$\Rightarrow 500+\frac{12.5}{100}\times 500$$
    $$\Rightarrow 500+62.5=Rs.562.50$$ 
  • Question 4
    1 / -0

    Directions For Questions

    A shopkeeper buys an article at a discount of 30% and pays sales-tax at the rate of 8%. The shopkeeper, in turn, sells the article to a customer at the printed price and charges sales tax at the same rate. If the printed price of the article is Rs. 2,500; find.

    ...view full instructions

    The price paid by the customer
    Solution
    The shopkeeper sells the article to customer at printed price .
    Printed price=Rs.2500
    Rate of sales tax=8%
    $$\therefore$$Price paid by the customer=2500+8% of 2500
    $$\Rightarrow 2500+\frac{8}{100}\times 2500$$
    $$\Rightarrow 2500+200=Rs.2700$$
  • Question 5
    1 / -0
    An article is sold at a profit of $$14\%$$. If both the cost price and selling price are Rs. $$132$$ less, the profit would be $$12\%$$ more. Find the cost price.
    Solution
    Let cost price be $$x$$
    SP $$= x + 14\% $$ of $$ x=x+\dfrac{14x}{100} = 1.14x$$
    If CP and SP were Rs. $$132$$ less, the profit would be $$(14 + 12)\%$$
    New, CP $$= (x - 132)$$
    SP $$ = 1.14x - 132$$
    SP $$-$$ CP $$= 26\%$$ of $$(x - 132)$$
    $$1.14x - 132 - x + 132 = \dfrac{26\times (x-132)}{100}$$
    $$0.14x \times100 = 26x - 3432$$
    $$14x - 26x = -3432$$
    $$12x = 3432$$
    $$x = 286$$
    So, CP was Rs. $$286$$.
  • Question 6
    1 / -0
    A man sells an article at a gain of $$20\%$$. If he had bought it for $$20 \%$$ less and sold it for $$264$$ less, he would have still gain $$20\%$$.The cost price of the article is ?
    Solution
    Let C.P. be $$X$$ 
    Hence, S.P. $$= X+20\%$$ of $$X=X+\dfrac{20}{100}\times X= 1.2 X$$
    If he had bought it for $$20\%$$ less 
    Then, new C.P. $$= X - 20\% $$ of $$ X =X-\dfrac{20}{100}X= 0.8X$$
    And new S.P. $$ = 1.2X - 264$$
    Gain $$= 20\%$$
    $$\Rightarrow \dfrac{(1.2X-264)-.8X}{.8X}=\dfrac{20}{100}$$

    $$\Rightarrow \dfrac{.4X-264}{.8X}=\dfrac{20}{100}$$

    $$\Rightarrow 40x-26400=16x$$

    $$\Rightarrow 24x=26400$$

    $$\Rightarrow X = 1100$$
    Thus, C.P. of the article $$=$$ Rs. $$ 1100$$.
  • Question 7
    1 / -0
    A man bought a chair and sold it at a gain of $$5$$%. If he had bought it at $$5$$% less and sold it for Rs $$45$$ more, he would have gained $$20$$% . Find the cost price of the chair?
    Solution
    Let CP = x
    SP = x + 5% of x = 1.05x
    Now,
    If he had bought it in 5% less,
    CP = x - 5% of x = 0.95x
    New SP = 1.05x + 45
    New gain = 20% of 0.95x
    1.05 + 45 - 0.95x = 20% of 0.95x
    0.1x + 45 = 0.19x
    0.09x = 45
    x = 500
    CP = Rs. 500
  • Question 8
    1 / -0
    A man loses $$13 \%$$ by selling a book at  a certain price. If he had sold it for Rs. $$9.75$$ more he would have gained $$26\%$$. Find the cost price of the book ?
    Solution
    Let C.P. be $$x$$

    S.P. $$= x - 13\%$$ of $$x =x-\dfrac{13}{100}\times x= 0.87 x$$

    If he had sold it in Rs. $$9.75$$ more, he had gained,

    New S.P. $$= 0.87x + 9.75$$

    Then according to the question, we have 

    $$\Rightarrow 0.87x + 9.75 = x + 26\%$$ of $$ x$$

    $$\Rightarrow 0.8x + 9.75 = 1.26x$$

    $$\Rightarrow 0.39x = 9.75$$

    $$\Rightarrow x = \dfrac{9.75}{0.39}$$

    $$\Rightarrow x = 25$$

    So, the cost Price was Rs. $$25$$.
  • Question 9
    1 / -0
    A man purchased a bullock and a cart for Rs. $$1800$$. He sold the bullock at a profit of $$20\%$$ and cart at a profit of $$30\%$$. His total profit was $$\dfrac{155}{6} \%$$. Find the cost price of bullock?
    Solution
    Cost Price of bullock and cart $$=$$ Rs. $$1800$$.
    Let bullock price was $$X$$ and cart price was $$(1800-X)$$
    SP of both $$= 1800+\dfrac {155}{6}\%$$ of $$1800 = 2265$$
    Profit $$=$$ Rs. $$465$$
    $$X + 20\%$$ of $$X + (1800-X)+30\%$$ of $$(1800-X)=2265$$
    $$1.2 X+1800-X +\dfrac { (54000 - 30 X)}{100} = 2265$$
    $$1.2 X+1800 - X + 540 - 0.3 X = 2265$$
    $$1.2 X - 1.3 X = 2265 - 1800 - 540$$
    $$- 0.1 X = -75$$
    $$X = 750$$
    Cost of bullock is Rs. $$750$$.
  • Question 10
    1 / -0
    A man has to sell pulse at a loss of 10%. If he increases the selling price by Rs 5 per kg, he would make a profit of 15%. Find the cost price and initial selling price per kg of pulse.
    Solution
    Let C.P. $$= x$$
    S.P. $$= x - 10\% $$ of $$ x=x-\dfrac{10x}{100}=\dfrac{90x}{100} = 0.9x$$
    New S.P. $$= 0.9x + 5$$
    Gain $$ =$$ S.P. $$ -$$ C.P.
    $$\Rightarrow 15\%  $$ of $$ x = 0.9x + 5 - x$$
    $$\Rightarrow 0.15x + x - 0.9x=5$$
    $$\Rightarrow 0.25x = 5$$
    $$\Rightarrow x = \dfrac{5}{0.25 }=$$ Rs. $$20$$
    So, initial selling price $$= 20 - 10\% $$ of $$ 20=20-\frac{10}{100}\times 20 =$$ Rs. $$ 18.$$.
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