MEDIUM
10th Manipur Board
IMPORTANT
Earn 100

Find the sum of all the multiples of 7 between 100 and 300.

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Important Questions on Arithmetic Progression (AP)

HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 9
If the 12th term of an AP is -13 and the sum of the first four terms is 24, find the sum of the first 15 terms.
HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 10
Find the sum of the first 22 terms of an AP whose 8th and 16th terms are respectively 37 and 85.
HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 11
The sum of the first 7 terms of an AP is 10 and that of the next 7 terms is 17. Find the first term and the common difference of the AP.
HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 12
Find the sum of the first 50 terms of an AP whose nth term is 3-2n.
HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 13
Find the first term and the common difference of an AP if the sum of the first n term is n5n+712.
HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 14
In an AP, if the sum of the first m terms is equal to n and that of the first n terms is equal to m, then prove that the sum of the first m+n terms is -(m+n).
HARD
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 15
The sum of the first n, 2n, 3n terms of an AP are S1, S2, S3 respectively. Show that S3=3(S2-S1).
MEDIUM
10th Manipur Board
IMPORTANT
Mathematics for Class 10>Chapter 6 - Arithmetic Progression (AP)>EXERCISE 6.2>Q 16
A man repays a debt of ₹4860 by paying ₹30 in the first month and then increases the amount by ₹15 every month. How long will it take him to clear the debt (Assume that no interest is charged)?