Maths
A spiral is made up of successive semicircles, with centres alternately at A and B, starting with centre at A of radii 0.5, 1.0 cm, 1.5 cm, 2.0 cm, ……… as shown in figure. What is the total length of such a spiral made up of thirteen consecutive semicircles? take pie = 22/7
04
Oct
A spiral is made up of successive semicircles, with centres alternately at A and B, starting with centre at A of radii 0.5, 1.0 cm, 1.5 cm, 2.0 cm, ……… as shown in figure. What is the total length of such a spiral made up of thirteen consecutive semicircles? take pie = 22/7 ……… as [...]
In a school students thought of planting trees in and around the school to reduce air pollution. it was decided the no of trees that each section of each class will plant will be the same as the class in which they are studying .eg.. a section of class 1 will plant 1 tree, a section of class 2 will plant 2 trees and so on till class 12.there are 3 sections of each class. how many trees will be planted by the students?
04
Oct
In a school students thought of planting trees in and around the school to reduce air pollution. it was decided the no of trees that each section of each class will plant will be the same as the class in which they are studying .eg.. a section of class 1 will plant 1 tree, a [...]
A sum of Rs 700 is to be used to give seven cash prizes to students of a school for their overall academic performance. if each prize is Rs 20 less than its preceding prize, find the value of each of the prize.
04
Oct
A sum of Rs 700 is to be used to give seven cash prizes to students of a school for their overall academic performance. if each prize is Rs 20 less than its preceding prize, find the value of each of the prize. A sum of Rs 700 is to be used to give seven [...]
A contract on construction job specifies a penalty for delay of completion beyond a certain date as follows: Rs 200 for the first day, Rs 250 for the second day, Rs 300 for the third day, etc.. the penalty for each succeeding day being Rs 50 more than for the preceding day. how much money the contractor has to pay as penalty, if he has delayed the work by 30 days?
04
Oct
A contract on construction job specifies a penalty for delay of completion beyond a certain date as follows: Rs 200 for the first day, Rs 250 for the second day, Rs 300 for the third day, etc.. the penalty for each succeeding day being Rs 50 more than for the preceding day. how much money [...]
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A contract on construction job specifies a penalty for delay of completion beyond a certain date as follows: Rs 200 for the first day ,
etc.. the penalty for each succeeding day being Rs 50 more than for the preceding day. how much money the contractor has to pay as penalty ,
if he has delayed the work by 30 days? ,
Rs 250 for the second day ,
Rs 300 for the third day ,
Find sum of the odd numbers between 0 and 50.
04
Oct
Find sum of the odd numbers between 0 and 50. Find sum of the odd numbers between 0 and 50. October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,
Find the sum of the first 15 multiples of 8.
04
Oct
Find the sum of the first 15 multiples of 8. Find the sum of the first 15 multiples of 8. October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,
Find the sum of first 40 positive integers divisible by 6.
04
Oct
Find the sum of first 40 positive integers divisible by 6. Find the sum of first 40 positive integers divisible by 6. October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,
If the sum of the first n terms of an Ap is 4n – n^2 what is first term? what is the sum of first two terms? what is the second term? similarly find the 3rd and 10th and nth terms.
04
Oct
If the sum of the first n terms of an Ap is 4n – n^2 what is first term? what is the sum of first two terms? what is the second term? similarly find the 3rd and 10th and nth terms. If the sum of the first n terms of an Ap is 4n - [...]
Show that a1,a2,…..an’…..form an AP Where an is defined as below: (i) an = 9 – 5n
04
Oct
Show that a1,a2,…..an’…..form an AP Where an is defined as below: (i) an = 9 – 5n .....an'.....form an AP Where an is defined as below: (i) an = 9 - 5n a2 Show that a1 October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,
Also find the sum of the first 15 terms in each case. an = 3 + 4n
04
Oct
Also find the sum of the first 15 terms in each case. an = 3 + 4n Also find the sum of the first 15 terms in each case. an = 3 + 4n October 4, 2020 Category: Chapter 5 - Arithmetic Progressions , Maths , NCERT Class 10 ,