The cost of type 1 rice is Rs. 20 per kg and type 2 rice is Rs. 30 per kg. If both Type 1 and Type 2 are mixed in the ratio 2:3, then the price per kg of the mixed variety is

A trader has two varieties of rice, type A & type B whose selling prices are ₹100 per kg and ₹180 per kg respectively. The possible quantities of type A rice to be mixed with 500 kg of type B rice, such that the selling price of the resulting mixture is ranging between ₹120 per kg to ₹150 per kg, are:

(A) 1400 kg

(B) 200 kg

(C) 1000 kg

(D) 800 kg

Choose the correct answer from the options given below:

A container contains 100 litres of acid. From the container, 10 litres acid was taken out and replaced by equal amount of water. This process was repeated further twice, then the amount of acid left in the container is:

Pure milk costs ₹80 per litre. A milkman adds water to 24 litres of pure milk and sells the mixture at ₹60 per litre without extra gain or loss. How many litres of water does he add?

A bottle is full of antiseptic liquid. One third of it is taken out and then an equal amount of water is poured into the bottle to fill it. This process is repeated three times. If the final ratio of antiseptic liquid and water is $\frac{p}{q}$, where $\gcd(p,q)=1$, then $(p+q)$ is

If a container contains 't' units of a particular liquid. Out of which 's' units are taken out and replaced by water. Then after $p-1$ operations, the quantity of pure liquid left in the container is given by:-

The average salary per head of the entire staff of a small factory including the managers and technicians is Rs.5750. The average salary per head of the manager is Rs. 20000 and that of technicians is Rs. 5000. If there are four managers, then the number of technicians in the factory is: