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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 8

A tape-recorder is sold for Rs. 2,760 at a gain of 15% and a C.D. player is sold for Rs. 3,240 at a loss of 10% Find : (i) the C.P. of the tape-recorder (ii) the C.P. of the C.D. player. - Mathematics

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प्रश्न

A tape-recorder is sold for Rs. 2,760 at a gain of 15% and a C.D. player is sold for Rs. 3,240 at a loss of 10% Find :
(i) the C.P. of the tape-recorder
(ii) the C.P. of the C.D. player.
(iii) the total C.P. of both.
(iv) the total S.P. of both
(v) the gain % or the loss % on the whole

योग
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उत्तर

S.P. of tape-recorder = Rs. 2,760

Gain = 15%

(i) C.P. =`(100xx"S.P.")/115` ......`["C.P."=(100xx "S.P.")/ ((100+"Gain"))]`

`=(100xx2760)/115=(20xx2760)/23=20xx120="Rs." 2400`

(ii) S.P. of C.D. Player = Rs. 3,240

`["C.P."=100/((100-"loss"))xx"S.P."]`

`=100/((100-10))xx3240`

`=100/90xx3240`

= 100 × 36

= Rs. 3600

(iii) Total C.P. of both = Rs. 2400 + Rs. 3600 = Rs. 6000

(iv) Total S.P. of both = Rs. 2760 + Rs. 3240 = Rs. 6000

(v) Since S.P. = C.P.
there is no gain and loss on the whole.

shaalaa.com
To Find C.P., When S.P. and Gain (Or Loss) Percent Are Given
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 8: Profit, Loss and Discount - Exercise 8 (B) [पृष्ठ ९३]

APPEARS IN

सेलिना Concise Mathematics [English] Class 8 ICSE
अध्याय 8 Profit, Loss and Discount
Exercise 8 (B) | Q 10 | पृष्ठ ९३

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