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Mathematics Quiz For RRB NTPC : 25th January 2020 | Trigonometry , Algebra And Geometry

In Today's Mathematics Quiz we are providing latest pattern questions based on the topics of Trigonometry , Algebra And Geometry.

| Updated On February 19th, 2020 at 02:51 pm

Q1.

Q2. A man has some hens and some cows. If the total number of heads of hens and cows together is 50 and the nunber of feet of hens and cows together is 142, then the number of cows is:
(a) 21
(b) 25
(c) 27
(d) 29

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Q3. In a class, average height of all students is ‘a’ cms. Among them, average height of 10 students is ‘b’ cms and the average height of the remaining students is ‘c’ cms. Find the number of students in the class. (Here a > c and b > c)
(a) (a(b – c))/(a – c)
(b) ((b – c))/((a – c))
(c) (b – c)/(10(a – c))
(d) (10(b – c))/(a – c)

Q4.
(a) 0
(b) 1
(c) 5
(d) 6

Q5.
(a) 7
(b) 6
(c) 3.5
(d) 2.5

Q6. Two circles of radii 17 cm and 8 cm are concentric. The length of a chord of greater circle which touches the smaller circle is:
(a) 15 cm
(b) 16 cm
(c) 30 cm
(d) 34 cm

Q7. The least six digit number which is a perfect square is
(a) 100489
(b) 100000
(c) 100256
(d) 100225

Q8. The percentage change of a number when it is first decreased by 10% and then increased by 10% is:
(a) 0.1% increase
(b) 1% decrease
(c) 0.1% decrease
(d) No changes

Q9. Find the angular elevation of the sum when the shadow of a 15m long pole is metres
(a) 45°
(b) 60°
(c) 30°
(d) 90°

Q10.
(a) 4
(b) 1
(c) 2
(d) 5

Solutions:

    

Important Links for RRB NTPC Recruitment 2019
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