EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q121.For what values of m, m 1 m 1 m m a b + + + is the arithmetic mean of a and b?
Correct answer: 0
EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q122.The sum of the first p terms of an A.P. is q and sum of the first q terms is p. Then the sum of (p+q) terms of the series is–
Correct answer: –(p + q)
EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q123.If a, b, c are in A.P., then 3a, 3b, 3c are –
Correct answer: GP
EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q124.The th 10 common term between the 3+7+11+…and 1+6+11+…is–
Correct answer: 191
EnglishUKPSC GIC 2018 JDD-75-PGT TIER II-X-15 28.06.2015
Q125.The minimum value of the expression- x 1 x 3 3;x R − + ∈ + ∈ is–
Correct answer: 2 3
EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q126.In an arithmetic progression sum of terms, equidistant from the beginning and the end is equal to–
Correct answer: sum of the first and last term
Q127.The sum of series are 4 8 16 log 2 log 2 log 2......... − + +
Correct answer: 1-loge2
Q128.Series 1 1 1......... 2 3 6 + + + + + + + + + + + + the sum of 9 term is:
Correct answer: −3/2
Q129.If a, b, c are in geometric progression then loga10, logb10, logc10 will be:
Correct answer: Harmonic progression
Q130.If H, is the harmonic mean of P and Q, then the value of H H P Q + + will be:
Correct answer: 2
Q131.The number of real solution of equation (((()))) x x x cos e 2 2− − = + = +:
Correct answer: 0
Q132.What will be the first term of a geometric progression whose second term is 2 and the sum of Infinite terms is 8?
Correct answer: 4
Q133.The sum of n terms of 1 3 7 15...... 2 4 8 16 + + + + + + + + + + + + + + + + will be equal to.
Correct answer: n n 2 1 − + −
Q134.If a, b, c are in A.P. then a 1 1,, bc c b will be:
Correct answer: A.P.
Q135.If 1 1 1,,, b c c a a b + + + + + + + + + + + + are in A.P. then
Correct answer: a2,b2,c2 are in A.P.
Q136.If a, b, c are in G.P. then a b c log,log,log λ are in.
Correct answer: H.P
Q137.1/ 2 1/ 4 1/ 6 1/8 1/16 x.x.x.x.x.........to ∞ ∞ ∞ is equal to:
Correct answer: x
Q138.The sum of all two digit odd numbers is
Correct answer: 2475
Q139.If (m+n)th term is 16 and (m–n)th term is 4 in a G.P, then the mth term will be?.
Correct answer: 8
Q140.If the arithmetic mean of two numbers is 16 and the Harmonic mean is 63 4 then their Geometric mean is:
Correct answer: 6 7