The number of two-digit numbers which are divisible by 3 is

The number of two-digit numbers which are divisible by 3 is
(a) 33
(b) 31
(c) 30
(d) 29

Solution:

The number of multiples of 4 that lie between 10 and 250 is
(a) 62
(b) 60
(c) 59
(d) 55

Solution:

More Solutions:

• The nth term of an A.P. cannot be n² + n + 1.
• Find the sum :
• How many terms of the A.P. -6, (-11/2), (-5), …..
• Find the sum of first 20 terms of this A.P.
• The sum of the first 14 terms of an A.P. is 1505 and its first term is 10.
• The sum of first n term of an A.P. is 3n² + 4n.