Mathematics Quiz For RRB NTPC : 23rd November

Q1.Which of the following fraction is the smallest ?
4/7,5/8,8/9,9/10
(a)4/7
(b)5/8
(c)8/9
(d)9/10

Q2.If (x–1)^2+(y–2)^2+(z+1)^2=0, then the value of 4x –5y+2z
(a) 5
(b) 6
(c) – 4
(d) – 8

Q3.A number being divided by 78 gives a remainder 39. If the number is divided by 26 then find the remainder?
(a) 13
(b) No remainder
(c) 25
(d) 12

Q4.Which of the following relation is correct for 0 < θ< 90
(a) sin θ = sin² θ
(b)sin θ≻ sin² θ
(c) sin θ < sin² θ
(d) sin θ = cosec θ

Directions (5-7): Study the following Histogram and answer the following questions :

Q5.The total number of students involved in the data is
(a) 165
(b) 60
(c) 175
(d) Can’t determined

Q6.Average number of student having marks 20 & 30?
(a) 35
(b) 40
(c) 30
(d) 20

Q7.If total marks in examination is 60 and minimum passing marks is 40%. How many students fail in the examination.
(a) 60
(b) 50
(c) 30
(d) 45

Q8.The square root of (181² – 180²)
(a) 19
(b) 20
(c) 17
(d) 23

Q9.16^(1/4)×32^(1/5)×64^(1/6)×128^(1/7) is equal to
(a) 16
(b) 4
(c) 8
(d) 5

Q10.((0.57)^3–(0.43)^3)/((0.57)^2+(0.43)^2+(0.2451) ) is simplified to
(a) 1
(b) 0.14
(c) 0
(d) 1.14

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