NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions Ex 5.4

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions Ex 5.4 are part of
NCERT Solutions for Class 10 Maths. Here are we have given Chapter 5 Arithmetic Progressions Class 10 NCERT Solutions Ex 5.4. 

BoardCBSE
TextbookNCERT
ClassClass 10
SubjectMaths
ChapterChapter 5
Chapter NameArithmetic Progressions
ExerciseEx 5.4
Number of Questions Solved5
CategoryNCERT Solutions

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions Ex 5.4

Question 1. Which term of the AP 121, 117, 113, …. is its first negative term?

Solution :

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 60

Question 2. The sum of the third and the seventh terms of an AP is 6 and their product is 8. Find the sum of first sixteen terms of the AP.

Solution :

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 61

Question 3. A ladder has rungs 25 cm apart. The rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top. If the top and bottom rungs are 2 1/2m apart what is the length of the wood required for the rungs?
NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 62

Solution :

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 63

Question 4. The houses of a row are number consecutively from 1 to 49. Show that there is a value of x such that the sum of numbers of the houses preceding the house numbered xis equal to the sum of the number of houses following it. Find this value of x.

Solution :

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 64

Question 5. A small terrace at a football ground comprises of 15 steps each of which is 50 m long and built of solid concrete.
Each step has a rise of 1/4m and a tread of 1/2m. calculate the total volume of concrete required to build the terrace.
NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 65

Solution :

NCERT Solutions for Class 10 Maths Chapter 5 Arithmetic Progressions 66

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