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4.a lady sold 40 sarees at a profit of 20%. if the cost of one saree is rs. 100, find the selling price of each saree. 5. if 15:x =60% then what is the value of x? 6. Harish bought a second hand printer for rs. 1200 and spent rs.200 on its repairs. he sold it for rs. 1680. find his profit or loss percent. 7. how long will it take for rs. 2500 invested at the rate of 8% per annum simple interest to amount to rs. 3100? 8. What is the interest on rs. 12000 at 6% per annum for 146 days? 9. A student has to score 35% marks to pass an exam. Anjali scored 154 marks and failed by 21 marks. Find the maximum marks. 10. A dealer bought for watch for rs. 420. find the selling price if it is sold: (i)AT a gain of 5% (ii) at a loss of 5% Please I want the answers of all the questions immediately

Asked by omsingh | 12th Jul, 2015, 01:39: PM

Expert Answer:

$4. C o s t space p r i c e space o f space o n e space s a r e e equals R s.100 C o s t space p r i c e space o f space 40 space s a r e e s equals 40 cross times 100 equals R s.4000 P r o f i t space p e r c e n t space i n space s e l l i n g space 40 space s a r e e s equals 20 P r o f i t space i n space s e l l i n g space 40 space s a r e e s equals R s.4000 cross times 20 % equals 40 up diagonal strike 00 cross times fraction numerator 20 over denominator 1 up diagonal strike 00 end fraction equals R s.800 S e l l i n g space p r i c e space o f space 40 space s a r e e s equals C o s t space p r i c e space o f space 40 space s a r e e s plus P r o f i t space i n space s e l l i n g space 40 space s a r e e s space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals R s.4000 plus R s.800 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals R s.4800 S e l l i n g space p r i c e space o f space o n e space s a r e e equals fraction numerator S e l l i n g space p r i c e space o f space 40 space s a r e e s over denominator N u m b e r space o f space s a r e e s end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator R s.4800 over denominator 40 end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals R s.120 5. G i v e space t h a t space 15 colon x equals 60 % rightwards double arrow 15 colon x equals 60 colon 100 rightwards double arrow 15 over x equals 60 over 100 rightwards double arrow 60 cross times x equals 15 cross times 100 rightwards double arrow x equals fraction numerator 15 cross times up diagonal strike 100 to the power of 5 end strike over denominator up diagonal strike 60 cubed end strike end fraction rightwards double arrow x equals fraction numerator 15 cross times 5 over denominator 3 end fraction rightwards double arrow x equals fraction numerator up diagonal strike 15 to the power of 5 end strike cross times 5 over denominator up diagonal strike 3 to the power of 1 end strike end fraction rightwards double arrow x equals 25 6. H a r i s h space b u y i n g space p r i c e equals R s.1200 M o n e y space s p e n t space o n space r e p a i r s equals R s.200 H a r i s h space cos t space p r i c e equals R s.1200 plus R s.200 equals R s.1400 H a r i s h space s e l l i n g space p r i c e equals R s.1680 S i n c e space t h e space s e l l i n g space p r i c e space i s space g r e a t e r space t h a n space t h e space cos t space p r i c e comma space H a r i s h s o l d space t h e space p r i n t e r space i n space p r o f i t. P r o f i t equals S e l l i n g space p r i c e minus C o s t space p r o c e space space space space space space space space space space equals R s.1680 minus R s.14000 equals R s.280 P r o f i t space p e r c e n t equals fraction numerator P r o f i t over denominator C o s t space p r i c e end fraction cross times 100 % space space space space space space space space space space space space space space space space space space space space space equals 280 over 1400 cross times 100 % space space space space space space space space space space space space space space space space space space space space space equals 20 %$

Kindly post one question per query!!!!!!!!!!

Answered by Vimala Ramamurthy | 13th Jul, 2015, 09:15: AM

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