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Question 1
In an alloy, the ratio of copper and zinc is 5 : 2. If 1.250 kg of zinc is mixed in 17 kg 500g of alloy, then the new ratio of copper and zinc will be
Question 2
In two types of stainless steel, the ratio of chromium and steel are 2 : 11 and 5 : 21 respectively. In what proportion should the two types be mixed so that the ratio of chromium to steel in the mixed type becomes 7 : 32?
Question 3
The price of rice is reduced by 2 %. How many kilograms of rice can now be bought for the money which was sufficient to buy 49 kg of rice earlier?
Question 4
A vessel is filled with mixture in which water and syrup is in the ratio 3:5. How much of the mixture must be drawn and replaced with water so that mixture has water and syrup in the ratio 1:1?
Question 5
In a mixture of 60 litres, the ratio of milk and water is 2 : 1 How much more water must be added to make its ratio 1 : 2?
Question 6
Alcohol and water in two vessels A and B are in the ratio 5 : 3 and 5 : 4 respectively. In what ratio, the liquids in both the vessels be mixed to obtain a new mixture in vessel C in the ratio 7 : 5?
Question 7
How many kg of pulses costing Rs 8 per kg must be mixed with 36 kg of rice costing RS 5.40 per kg so that 20% gain obtained by selling the mixture at Rs 7.20 per kg?
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Jul 7SSC & Railway