Q.1
Let AAbe two AM’s and GG2 be two GM’s between a and b,then (A1 + A/ G1G2 is equal to _______
  • a) (a+b) / 2ab
  • b) 2ab/(a+b)
  • c) (a+b)/(ab)
  • d) None of the mentioned
Q.2
The series a,(a+b)/b is in _______
  • a) AP
  • b) GP
  • c) HP
  • d) None of the mentioned
Q.3
The series a, (ab)1/b is in _______
  • a) AP
  • b) GP
  • c) HP
  • d) None of the mentioned
Q.4
If A and G be the A.M and G.M between two positive number then the numbers are A + (A2 – G2)1/ A – (A2 – G2)1/2.
  • a) True
  • b) False
Q.5
If one geometric mean G and two airthmetic mean AA2 are inserted between two numbers, then (2A1 – A(2A2 – Ais equal to _______
  • a) 2G
  • b) G
  • c) G2
  • d) None of the mentioned
Q.6
State whether the given statement is true or false.
  • a) True
  • b) False
Q.7
If between two numbers which are root of given equation. x2 –+=a GM is inserted then the value of that GM is?
  • a) 4
  • b) 5
  • c) 6
  • d) 16
Q.8
If aaaare in airthemetic as well as geometric progression then which of the following is/are correct?
  • a) 2a2 = a1 + a3
  • b) a2 = (a1a3)1/2
  • c) a2 – a1 = a3 -a2
  • d) All of the mentioned are correct
Q.9
If aaaare in GP then 1/a1/a1/a are in ___________
  • a) AP
  • b) GP
  • c) HP
  • d) None of the mentioned
Q.10
If aaa3…….. are in AP then if a7 =then the value of common difference that would make a2 a7 agreatest is?
  • a) 2
  • b) 0
  • c) 4
  • d) 9
0 h : 0 m : 1 s