Aptitude Quiz 8

Bankers Adda is also known to be called as Aptitude Quiz adda.
Today Bankers Adda came back with a New Quiz on Aptitude
Go through the quiz and if you have any doubts please contact bankers adda in the comment section.

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1.   25    50    35    70    55    110    95    (?)
(1) 196  
(2) 80
(3) 185
(4) 190
(5) None of these


Explanation: 
25,     50,    35,    70,    55,   110,  95,    (190)
      ×2     -15     ×2    -15    ×2       -15    ×2


2.   (341/20.002) ÷ (511/30.07) × (179.909/49.919) = ?
(1) 36
(2) 7.2
(3) 72
(4) 3.6
(5) 1.8


Explanation: 
? = (341/20.002) ÷ (511/30.07) * (179.909/49.919) = ?
     ≈ 340/20 * 30/510 * 180/50

     ≈ 3.6


3.   10     14     26    50    90     (?)
(1) 100  
(2) 125
(3) 150
(4) 155
(5) None of these


Explanation: 
10,    14,     26,    50,    90,   (150)
     +4    +12    +24  +40   +60
          +8    +12     +16   +20


4.   2      8   20    44    92   (?)
(1)189  
(2)188
(3) 288
(4) 818
(5) None of these


Explanation: 
2        8         20       44       92        (188)
    +6     +12     +24     +48      +96


5.   √2900 × √498 ÷ √251 = ? ÷ 8
(1) 600
(2) 670
(3) 770
(4) 750
(5) 730



Explanation:
? =√2290×√498÷√251×8
≈ 54×22÷16×8
≈600