Maths quiz

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Transcript of Maths quiz
Snehal Bhargava
XD
MATHSQUIZ
CHOOSE A QUIZ FROM THE LIST:
Real Numbers
Arithmetic Progressions
Introduction to Trigonometry
REAL NUMBERS
a) 77/210 b) 23/8c) 17/8 d) 35/50
1. Which of the following has a nonterminating decimal expansion?
2. If p, q are two consecutive natural numbers, then HCF(p, q) is 
a) p b) qc) 1 d) pq
3. Which of the following is not an irrational number –
a) 5  √3 b) 5 + √3c) 4 + √2 d) 5 + √9
4. The decimal expansion of π is –
a) Terminating b) Non Terminating Repeatingc) Non Terminating Non Repeating d) None Of These
5. If HCF of 60 and 168 is 12, then LCM is –
a) 480 b) 240c) 420 d) 840
INDEX
ARITHMETIC PROGRESSIONS
a) 6 b) 7c) 20 d) 28
1. In an AP, if d= 4, n = 7, an = 4, then a =
2. The sum of first five multiples of 3 is –
a) 45 b) 65c) 75 d) 90
3. For AP, T18 – T8 –
a) d b) 10dc) 26d d) 2d
4. (1) + (1 + 1) + (1 + 1 + 1) + …. + (1 + 1 + 1 + … n  1 times) =
a) n(n + 1)/2 b) n(n  1)/2c) n² d) n
INDEX
5. If an AP has a=1, tn=20and Sn=399, then value of n is
a) 20 b) 32c) 38 d) 40
INTRODUCTION TO TRIG
a) 13/5 b) 17/5c) 14/5 d) 1
1. If cot A=12/5, then the value of (sin A + cos A)cosec A =
2. If sin θ = cos θ, then θ =
a) 0° b) 45°c) 30° d) 90°
3. Sin(60°+θ) – cos(30°θ) =
a) 2cosθ b) 2sinθc) 0 d) 1
4. In sin3θ = cos (θ26°), where 3θ and (θ26°) are acute s, then value of ∠ θ is –
a) 30° b) 29°c) 27° d) 26°
INDEX
5. The value of [(cos A/cot A) + sin A] is –
a) cot A b) 2cos Ac) 2sin A d) sec A