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ganesh reddy to G.S.Kantharao 1 year ago

i got answer 1:1 but there is no option

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ganesh reddy to Devendra Marghade 1 year ago

thank u sir can u please solve remaining problems?

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ganesh reddy 1 year ago

Two alloys contain zinc and copper in the ratio of 2 : 1 and 4 : 1. In what ratio the
two alloys should be added together to get as new alloy having zinc and copper in
the ratio of 3 : 1

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G.S.Kantharao 1 year ago

Let the ratio is x:y
(2x+4y):(x+y)=3:1
2x+4y=3x+3y=>x=y
Now x:y=1:1

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ganesh reddy 1 year ago

How many Kg ot wheat @ Rs. 14 per kg should be mixed with 32 kg of wheat @ Rs
22 per kg so that there is a profit of 25% by selling the mixture @ Rs 23.90 per kg

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Devendra Marghade 1 year ago

Ans: 18 kg

Let x kg of wheat costing Rs. 14/kg is mixed, then (x*14 + 32*22)/(x+32) = 23.9*(100/125)
(14x + 704) / (x+32) = 19.12
14x + 704 = 19.12x + 611.84
5.12x = 92.16
x = 18

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ganesh reddy 1 year ago

Two types of rice (type 1 and type 2) were mixed in the respective ratio of 1 : 3.
The mixture was then sold @ 75.60 per kg to gain a profit of 20%. If the price of
type 1 rice is Rs. 75 per kg, what is the price of type 2 rice per kg

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ganesh reddy 1 year ago

Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In
what ratio should these be mixed to get an alloy 15 times as heavy as water.

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Devendra Marghade 1 year ago

Required ratio = (15-9)/(19-15) = 6/4 = 3/2
Therefore, these should be mixed in the ratio 3:2.

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ganesh reddy 1 year ago

In what respective ratio must water be mixed with juice costing Rs 16 per litre to
obtain a mixture worth Rs 12 per litre ?

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Devendra Marghade 1 year ago

Water. Juice
0 -------------------------- 16
12
(16-12). ---------------- (12-0)
=4 =12
Therefore, ratio of water & juice = 4 : 12 = 1 : 3

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