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NCERT Solutions 10th Maths Chapter 5 Arithmetic Progressions Exercise 5.1
NCERT Solutions For Class 10 Maths Chapter 5 Exercise 5.1 we will restart our exploration of the world of Arithmetic Progressions. Thus, we are providing you Chapter 5 Arithmetic Progressions NCERT Class 10 Maths Solutions that will help in achieving more marks. You don't have to wander and waste your precious time in finding best CBSE NCERT Solutions.
Exercise 5.1 1.In which of the following situations, does the list of numbers involved make as arithmetic progression and why? (i) The taxi fare after each km when the fare is Rs 15 for the first km and Rs 8 for each additional km. Answer It can be observed that Taxi fare for 1st km = 15 Taxi fare for first 2 km = 15 + 8 = 23 Taxi fare for first 3 km = 23 + 8 = 31 Taxi fare for first 4 km = 31 + 8 = 39 Clearly 15, 23, 31, 39 … forms an A.P. because every term is 8 more than the preceding term. (ii) The amount of air present in a cylinder when a vacuum pump removes 1/4 of the air remaining in the cylinder at a time. Answer Let the initial volume of air in a cylinder be V litres. In each stroke, the vacuum pump removes 1/4 of air remaining in the cylinder at a time. In other words, after every stroke, only 1 - 1/4 = 3/4th part of air will remain. Therefore, volumes will be V, 3V/4 , (3V/4)2 , (3V/4)3... Clearly, it can be observed that the adjacent terms of this series do not have the same difference between them. Therefore, this is not an A.P. (iii) The cost of digging a well after every metre of digging, when it costs Rs 150 for the first metre and rises by Rs 50 for each subsequent metre. Answer Cost of digging for first metre = 150 Cost of digging for first 2 metres = 150 + 50 = 200 Cost of digging for first 3 metres = 200 + 50 = 250 Cost of digging for first 4 metres = 250 + 50 = 300 Clearly, 150, 200, 250, 300 … forms an A.P. because every term is 50 more than the preceding term. (iv) The amount of money in the account every year, when Rs 10000 is deposited at compound interest at 8% per annum. Answer We know that if Rs P is deposited at r% compound interest per annum for n years, our money will bePost your comments
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SEND ME ALL BITS FOR CLASS 1 TO 10
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Send me all bits Bank pdf 1st to 10th class
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NCERT Solutions for Class 12
NCERT Solutions for Class 1 to 12, Free CBSE NCERT Solutions
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