1). If the sum of three numbers in A.P is 33 and sum of their squares id 491, then what are the three numbers. (d)
a. 5,11,17
b. 7,11,15
c. 9,11,13
d. 3,11,19
2). Find the first term and the common ratio of a G.P whose fourth term is 250 and seventh term is 31,250 (d)
a. 2/5,25
b. 4,5/2
c. 1,16
d. 2,5
3). Four angles of a quadrilateral are in G.P. Whose common ratio is an integer. Two of the angles are acute while the other two are obtuse. The measure of the smallest angle of the quadrilateral is (b)
a. 12
b. 24
c. 36
d. 48
4). In an A.P consisting of 27 terms, the sum of the first three terms is 21 and that of the three middle terms is 93. Find the first term and the common difference. (d)
a. 6,3
b. 6,23
c. 7,3
d. 5,2