In 120 of mixed fertilize, the amount of urea and potash are 60% and 40% respectivley. Let's find an write, how many kgs of fertilizers of each type are present in the mixed fertilizer.

If I change 3 hundred rupee notes in the form of 5 and 10 rupee notes and get 48 notes in total. Let’s find out how many notes of each type I would have.

A certain alloy contians 70% copper and rest zinc. In 20 kg of such alloy, Let's find how many kg of zinc is required.

Due to the rise the price of sugar we decided to reduce the consumption of suger by 4% presently, we consume 625 gm of suger every day. Let's find by how many grams the consumption of suger is ruduced and also the amout of suger consumed each day now.

Today I shall prepare orange juice, 'sherbet' (drink) myself. For preparing 300 ml of 'sherbet' I added 18% orange juice to it. Let's find how many milliliters of orange juice I added to the 'sherbet'.

One kg of food X contains 6 units of Vitamin A and 7 units of Vitamin B. One kg of food Y contains 8 units of Vitamin A and 12 units of Vitamin B. Cost of each kg of food X and food Y are Rs. 12 and Rs. 20 respectively. The daily minimum requirement of Vitamin A and Vitamin B are 100 units and 120 units respectively. How much food X and food Y are to be mixed so that the cost will be minimum? Formulate the problem as a linear programming problem.

Kavita needs 120 sheets of paper. There are 24 sheets in each bundle, Lets find how many bundles of paper Kavita would buy.

In the mathematics examination, 60% students of our class got more than 80 marks. If there are 50 students in our class, Let's find how many have got above 80.

There are two types of fertilisers F_(1) and F_(2),F_(1) consists of 10% nitrogen and 6% phosphoric ancid and F_(2) consists of 5% nitrogen and 10% phosphoric acid. After testing the soil conditions, a farmer finds that she needs atleast 14 kg of nitrogen and 14 kg of phosphoric acid for her crop. If F_(1) costs Rs. 6/kg and F_(2) costs Rs. 5/kg determine how much of each type of fertiliser should be used so that nutrient requirements are met at a minimum cost. What is the minimum cost?

Its raining heavily since morning. Hence only 20% student's were present in Alam's school. Total number of students in Alam's school is 1230 then Let's find how many students were acutally present in school.