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26 questions


arithmetic-progression



The common difference of an AP in which a18 – a14 = 32 is
21 hours ago Answer(s): 1 Votes: 2

The common difference of an AP in which a18 – a14 = 32 is



The common difference of an AP in which a25 − a12 = −52 ...
14 days ago Answer(s): 1 Votes: 2

The common difference of an AP in which a25 − a12 = −52 is (a) 4 (b) −4 (c) −3 (d) 3 



If 6/5 , a, 4 are in AP, the value of a is
14 days ago Answer(s): 1 Votes: 2

If 6/5 , a, 4 are in AP, the value of a is (a) 1 (b) 13 (c) 13/5 (d) 26/5



The 16th term of the AP : 15, 25/2 ,10, 15/2 , is
14 days ago Answer(s): 1 Votes: 2

The 16th term of the AP  : 15, 25/2 ,10, 15/2 , is (a) 45/2 (b) − 45/2 (c) 105/2 (d) -105/2



If an AP a = −2.5, d = 0.5, an = 7.5 then n is
14 days ago Answer(s): 1 Votes: 2

If an AP a = −2.5, d = 0.5, an = 7.5 then n is (a) 20 (b) 21 (c) 3.6 (d) −3.6



The sum of first 50 odd natural numbers is
14 days ago Answer(s): 1 Votes: 2

The sum of first 50 odd natural numbers is (a) 2500 (b) 2400 (c) 2600 (d) 2300



Two APs have the same common difference. The first term of o...
14 days ago Answer(s): 1 Votes: 2

Two APs have the same common difference. The first term of one of these −1 and that of the other is −8. Then the difference between their 4th ter...



If in an AP a = 1, tn = 20 and Sn = 399 then n is
14 days ago Answer(s): 1 Votes: 2

If in an AP a = 1, tn = 20 and Sn = 399 then n is (a) 19 (b) 21 (c) 38 (d) 42



The 9th term of an AP is 499 and 499th term is 9. The term w...
14 days ago Answer(s): 1 Votes: 3

The 9th term of an AP is 499 and 499th term is 9. The term which is equal to zero is (a) t508 (b) t805 (c) t504 (d) ...



The sum of first 18 terms of an AP whose nth term is 3 − 2...
14 days ago Answer(s): 1 Votes: 2

The sum of first 18 terms of an AP whose nth term is 3 − 2n is (a) −288 (b) 250 (c) −278 (d) −260