EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q7041.The acute angle in radians between the minute and hour hands of a clock when the time is 4 hours 20 minutes is–
Correct answer: 18/π
EnglishJDD-75-PGT TIER II-X-15 28.06.2015
Q7042.Let Sn denote the sum of the cubes of the first n natural numbers and sn denotes the sum of first n natural numbers, then n k k 1 S s is equal to–
Correct answer: n(n 1)(n 2) 6 + +
Q7043.The area of ∆ ∆ ∆ABC is 20 cm2. The co-ordinates of vertex A and B are (–5, 0) and (3, 0) respectively. The vertex C lies on the line x – y = 2. The co-ordinates of C are
Correct answer: (–3,–5)
Q7044.If a2 +b2 +c2 =1 then ab+bc+ca where will be in the following interval?
Correct answer: 1,1 2 −
Q7045.If the equation 3 3 log x 1 2 64 = has a solution then x =?
Correct answer: 1/3
Q7046.The number 2 log 7 is
Correct answer: Irrational number
Q7047.Simplify the expression, 3 6 5 3 2 12 32 50 + − − + − − + − − + − − +
Correct answer: 3
Q7048.A merchant sells a pen for Rs. 24.00. The trader makes a percentage profit equal to the cost price of the pen. What will be the cost price of the pen.
Correct answer: ` 20.00
Q7049.36 boys and girls work together to complete a task. For which he is given Rs. 166. If each girl is given Rs. 5 and each boys is given Rs. 4, then the different number of boys and girls will be–
Correct answer: 22, 14
Q7050.If log0.3(x–1) < log0.09(x–1), then in which interval the value of 'x' will be lies–
Correct answer: (2, ∞)
Q7051.If x identity |x–1|+|x–2|+|x–3| ≥ 6 satisfies then–
Correct answer: x 0or x 4/≤ ≥
Q7052.The solution of log7 log5 () + + = x 5 x 0 is–
Correct answer: 4
Q7053.For which value of 'x', yz = a2, zx =b2, xy =c2 is satisfy.
Correct answer: a / bc ±
Q7054.On solving equation 2 x 2x 2: 2 8:1 = For the real value of 'x'–
Correct answer: x = 3, -1
Q7055.If A=log2 log2 log4 256 + 2 2 log 2 then A=
Correct answer: 5
Q7056.If 3 17 x log 5,y log 25, = then what will be correct from given bellow–
Correct answer: x > y
Q7057.If a2 +4b2 =12ab then log (a+2b) =
Correct answer: 2 1 (log a + log b+ 4log2)
Q7058.A sum of money triples itself in 4 years at a certain rate of compound interest. Find in how many years it will become 27 times of itself.
Correct answer: 12 year
Q7059.If 'A' can do a piece of work in 24 days and 'B' is 60% more efficient than 'A', thus in how many days can 'B' do the same work?
Correct answer: 15
Q7060.If the height and diameter of the base of a cone are increased by 100%, then the volume of the cone is equal to the original. How many times will it increase from the volume?
Correct answer: Eight time