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10th CBSE
IMPORTANT
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Two A.P.s have the same common difference. The first term of one of these is -1 and that of the other is -8. Then the difference between their 4th terms is

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Important Questions on Arithmetic Progressions

MEDIUM
10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 12
If 7 times the 7th term of an A.P. is equal to 11 times its 11th term, then its 18th term will be:
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 13
The 4th term from the end of the A.P., -11, -8, -5, ....,49 is
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 14
The famous mathematician associated with finding the sum of the first 100 natural numbers is
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 15
If the first term of an A.P. is -5 and the common difference is 2, then the sum of the first 6 terms is: 
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 16
The sum of first 16 terms of the A.P.: 10, 6, 2, ... is: 
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 17
In an A.P., if a=1, an=20 and Sn=399, then n is
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>COMPETITION FILE>Q 18
The sum of first five multiples of 3 is
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10th CBSE
IMPORTANT
Modern's abc+ of Mathematics for Class 10>Chapter 5 - Arithmetic Progressions>NATIONAL TALENT SEARCH EXAMINATION (NTSE)>Q 1
Ratio of the sum of n terms of A.P's are (3n+8):(7n+15), then the ratio of their 5th terms is