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RRB NTPC CBT 2 MATHS QUESTIONS

1) Diagonal= 6√6
2) 7.5% Difference P and Q
3) Mean Deviation= 6
4) PQR Perimeter =97.56 or 120
5) AC concentric circles= 2√10
6) 400 mtr race = 8 meeting points
7) 150 mtr race = A beat C by 4 MTRS
8) Kite string = 40√2 m
9) Decimal wale ka Fraction 31/30
10) TanA = (-√6-10)/94
11) 600 Match boxes
12) X = 5 for X>0
13) Perimeter 19.2
14) a=6 b=14
15) 4.9 angle bisector wala
16)15% lower price150 saves and 150 transportation cost- 7.5%
17) P- 30,000, n= 3years, interest 4500, r- 5%
18) father son ration 7:2 father 49age, son age- 14years
19) C.I. 3times in 7years, 27times in - 21years
20) four digit no. that divide by 7,8,11 remainder 4 - 9860
21) 240 is added to 40% of a no. result is same no., 50% of that- 200
22) 4*9*25= 900
23) 2.6.8.10.12.14 median - 9
24) 12men can complete work in 18days, 8 men complets in-27days
25) A & b can do work in 22 & 9 days fraction left- 68/99
26) A no. increase by 20% and decrease by 20% - 4% decrease
27) Five interior angles each 185°remaining five interior angles value each- 103°
28) cordinates of centroid given find cordinates of vertices C - (7,3)
29) discount of 2% on price 20 , purchased 150 units - 2940
30) statement based kite is parallelogram - only c
31) (3x + 7y)^3 expand the expression -27x³ + 189x²y + 441xy² + 343y³
32) one half of no.,one fourth of no., one eight of no.- 1748
33) transverse intersecting parallel lines x - 55
34)area of parallelogram h =x base = 3x - 6root2
35) shopkeeper sells at 20%profit further a man sells at 10 % discount- _

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