English

A man sold a radio-set for Rs.250 and gained one-ninth of its cost price. Find ; (i) its cost price; (ii) the profit percent.

Advertisements
Advertisements

Question

A man sold a radio-set for Rs.250 and gained one-ninth of its cost price. Find ;
(i) its cost price;
(ii) the profit percent.

Sum
Advertisements

Solution

(i) Let C.P. of the radio-set = Rs.x

Gain = Rs.`"x"/9`

S.P. = Rs.`("x"+"x"/9)=((9"x"+"x")/9)"Rs." = "Rs."(10"x")/9`

But, we are given S.P. of the radio-set = Rs.250

`∴(10"x")/9=250`

`⇒"x"=250xx9/10⇒"x"=25xx9⇒"x"=225`

∴ C.P. of the radio set = Rs.225

 

(ii) Profit = Rs.`"x"/9`

= Rs.`225/9` ......(Substituting the value of x)

= Rs.25

Profit% =`"Profit"/"C.P."xx100`

`=25/225xx100=(25xx100)/225=100/9%`

`=11 1/9%`

shaalaa.com
To Find C.P., When S.P. and Gain (Or Loss) Percent Are Given
  Is there an error in this question or solution?
Chapter 8: Profit, Loss and Discount - Exercise 8 (A) [Page 90]

APPEARS IN

Selina Concise Mathematics [English] Class 8 ICSE
Chapter 8 Profit, Loss and Discount
Exercise 8 (A) | Q 15 | Page 90

RELATED QUESTIONS

Find the cost price, if :
S.P. = Rs. 1,128 and loss = 6%


Raju sells a watch at a 5% profit. Had he sold it for Rs.24 more; he would have gained 11%. Find the cost price of the watch.


Renu sold an article at a loss of 8 percent. Had she bought it at 10% less and sold for Rs.36 more; she would have gained 20%. Find the cost price of the article.


A shopkeeper sells three mobile phones at Rs. 15000, Rs. 9945 and Rs.5392 respectively. He makes a profit of 25% on the first mobile and `10(1)/(2)`% on the second, but incurs an overall loss `8(1)/(3)`% on the 3 whole transactions. Find the cost price of the third mobile.


On selling 10 watches at Rs. 1400 there is a loss equal to the cost price of 3 watches. Find the cost price of a watch.


A shirt was sold for Rs.1265 at a gain of 15%. Had the selling price been  Rs.55 more, the gain would have been 20%. Find the cost price of the shirt.


A manufacturer sells an article to a dealer at a profit of 10%. the dealer sells to the retailer at a profit of 8% and the retailer sells to the customer at a profit of 5%. If the customer pays Rs.12474 for the article, calculate the cost of manufacturing the same.


A man buys two cycles for a total cost of Rs.8000. By selling one cycle at a loss of 20% and the other at a profit of 30%, he makes a profit of Rs.650 on the whole transaction. Find the cost price of each cycle.


A bought a cycle and spent Rs.110 on its repair. He then sold it to B at 20% profit. B sold it to C at 10% loss. C sold it for Rs.1188 at 10% profit. How much did A pay for the article?


By selling 80 bananas for Rs. 240 a fruit seller loses 25%. How many bananas should he sell for Rs.100 to gain 25%.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×