In what ratio must rice at Rs. 9.30 per kg mixed with rice at Rs.10.80 per kg so that the mixture be worth Rs.10 per kg?

7 : 8

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6 : 7

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7 : 6

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8 : 7

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Solution

The correct option is D 8 : 7
C.P of 1 kg rice of 1st kind $= 930 p$
C.P of 1kg rice of 2nd kind $= 1080 p$
Mean Price $= 1000 p$
$∴ R e q u i r e d r a t i o = 80 : 70 = 8 : 7$

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In what ratio must rice at Rs. 9.30 per kg mixed with rice at Rs.10.80 per kg so that the mixture be worth Rs.10 per kg?

The correct option is D 8 : 7C.P of 1 kg rice of 1st kind=930pC.P of 1kg rice of 2nd kind=1080pMean Price =1000p∴Requiredratio=80:70=8:7

The correct option is D 8 : 7
C.P of 1 kg rice of 1st kind $= 930 p$
C.P of 1kg rice of 2nd kind $= 1080 p$
Mean Price $= 1000 p$
$∴ R e q u i r e d r a t i o = 80 : 70 = 8 : 7$