Q. 1373.9( 28 Votes )

150 students are studying English, Maths or both. 62 per cent of students study English and 68 per cent are studying Maths. How many students are studying both?

Answer :

Given, total students = 150

Students who study in English = 62% of 150 = × 150 = 93

Students who study Maths = 68% of 150 = × 150 = 102

Total students = 93 + 102 = 195

students who study both English and maths = 195-150 = 142

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PREVIOUSDesigning a Healthy DietWhen you design your healthy diet, you want to make sure that you meet the dietary requirements to help you grow into a healthy adult. As you plan your menu, follow the following guidelines1. Calculate your ideal weight as per your height from the table given at the end of this question.2. An active child should eat around 55.11 calories for each kilogram desired weight.3. 55 per cent of calories should come from carbohydrates. There are 4 calories in each gram of carbohydrates.4. 15 per cent of your calories should come from proteins. There are 4 calories in each gram of proteins.5. 30 per cent of your calories may come from fats. There are 9 calories in each gram of fat.Following is an example to design your own healthy diet.Example1. Ideal weight = 40 kg.2. The number of calories needed = 40 × 55.11 = 2204.43. Calories that should come from carbohydrates= 2204.4 × 0.55 = 1212.42 calories.Therefore, required quantity of carbohydrates4. Calories that should come from proteins= 2204.4 × 0.15 = 330.66 calories.Therefore, required quantity of protein5. Calories that may come from fat = 2204.4 × 0.3 = 661.3 calories.Therefore, required quantity of fatQuestions1. Your ideal desired weight is _________ kg.2. The quantity of calories you need to eat is _______.3. The quantity of protein needed is _______g.4. The quantity of fat required is _________ g.5. The quantity of carbohydrates required is __________ g.NEXTEarth Science: The table lists the world’s 10 largest deserts.A. What are the mean, median and mode of the areas listed?B. How many times the size of the Gobi Desert is the Namib Desert?C. What percentage of the deserts listed are in Asia?D. What percentage of the total area of the deserts listed is in Asia?