1 . What should come in place of the question mark (?) in the following number series ?
2, 16 ,112 ,672 ,3360 ,13440 ,?
A.  3430
B.  3340
C.  40320
D.  43240
E.  None of the above
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2 . What should come in place of the question mark (?) in the following number series ?
4 ,9 ,19 ,? ,79 ,159 ,319
A.  59
B.  39
C.  49
D.  29
E.  None of these
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3 . What should come in place of the question mark (?) in the following number series ?
4000,2000,1000,500,250,125,?
A.  80
B.  65
C.  62.5
D.  83.5
E.  None of these
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4 . What should come in place of the question mark (?) in the following number series ?
588, 563 ,540 ,519 ,? ,483 ,468
A.  500
B.  496
C.  494
D.  490
E.  None of these
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5 . What should come in place of the question mark (?) in the following number series ?
121,?,81,64,49,36,25
A.  92
B.  114
C.  98
D.  100
E.  None of these
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6 . What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
$\sqrt {84111}$ = ?
A.  240
B.  270
C.  330
D.  290
E.  310
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7 . What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
(4576 + 3286 + 5639) $\div$ (712 + 415 + 212) = ?
A.  18
B.  22
C.  34
D.  10
E.  46
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8 . What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
675.456 + 12.492 $\times$ 55.671 = ?
A.  971
B.  1071
C.  1171
D.  1271
E.  1371
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9 . What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
$(447.22)^2$ = ?
A.  200000
B.  210000
C.  220000
D.  230000
E.  240000
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10 . What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.)
4374562 $\times$ 64 = ? $\times$ 7777
A.  360
B.  3600
C.  36000
D.  360000
E.  3600000
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