NCERT Solutions Class 10 Maths Chapter 8 Introduction to Trigonometry
Answers to all questions have been solved without missing a step, with detailed explanation of the concepts as myboat015 boatplans teachoo, each chapter is divided into - Serial Order Wise, and Concept WiseIn Serial Order.� NCERT Solutions of all exercise questions and examples have been solved for Class 8 Maths. Answers to all questions have been solved without missing a step, with detailed explanation of the concepts as well. In teachoo, each chapter is divided into - Serial Order Wise, and Concept Wise. In Serial Order Wise, the chapter is taught according to the NCERT Book - divided into exercises and examples. You can check it if you have a doubt in a particular question, click on an exercise link under Serial Order Wise. The Teachoo way of doing a chapter is from Concept Wise. Ncert Class 8 Maths chapter Direct and Inverse Proportions (Video-1) Ex Q-1 - �����������������: Maths For Class 8 12 ����������. Chapter 1r is direct and inverse proportion. New questions in English.� Why join Brainly? ask questions about your assignment. get answers with explanations. find similar questions. I want a free account. We're in the know.

Question 1. How far will it travel in 20 minutes? Solution: Let the distance travelled by train in 20 minutes be x km. Since the speed is Class 5 Maths Chapter 6 Question Answer Set uniform, the distance travelled will be directly proportional to time.

Question 2. Complete the table if x and y vary directly. Solution: Let the blank spaces be filled with a, b and c. Question 3. Here, the two quantities vary directly. Question 4. Solution: Since x and y vary directly. Hence, the required value is Question 5. How many sugar crystals are there in 4 kg of sugar? Solution: Let the required number of crystals be x. Question 6. If 15 men can do a work in 12 days, how many men will do the same work in 6 days? Solution: Let the required number of men be x.

Thus the two quantities are inversely proportional to each other. Question 7. A train travels km in 1 hour 30 minutes with a certain speed. How many kilometres it will travel in 4 hours 45 minutes with the same speed? Solution: Let the required distance be x km. Question 8. The scale of a map is given as 1 : 50, Two villages are 5 cm apart on the map. Find the actual distance between them. Solution: Let the map distance be x cm and actual distance be y.

Question 9. How long will it take if only 6 pipes of the same type are used? Question Solution: Let the required number of workers be x. The number of workers, faster will they do the work. So, the two quantities are inversely proportional. The volume of a gas V varies inversely as the pressure P for a given mass of the gas. Fill in the blank spaces in the following table: Solution: Since volume and pressure are inversely proportional.

Tabulate the cost of 2, 4, 10 and 13 metres of cloth of the same type. We have the following table. Six pumps working together empty a tank in 28 minutes. How long will it take to empty the tank if 4 such pumps are working together? Solution: Let the required time be t minutes. A garrison of men has provisions for 30 days. At the end of 5 days, 5 more men joined them. How many days can they sustain on the remaining provision?

Solution: Let the number of days be x. In a scout camp, there is food provision for cadets for 42 days. If 50 more persons join the camp, for how many days will the provision last?

So, this is a case of inverse proportion. Let the required number of days be x. If two cardboard boxes occupy cubic centimetres space, then how much space is required to keep such boxes? So, this is a case of direct proportion. Thus, the required space is 50, cubic centimetres. Under the condition that the temperature remains constant, the volume of gas is inversely proportional to its pressure.

If the volume of gas is cubic centimetres at a pressure of mm of mercury, then what will be the pressure of the gas if its volume is cubic centimetres at the same temperature? Let the required pressure be x.

Therefore, the required pressure is mm of mercury. RD Sharma Class 12 Solutions. Watch Youtube Videos.


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