Coding-Decoding

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Which one of the following is correct?
6* 4* 9* 15
X, =, –
no
X, –, =
yes
=, x, –
no
–, x, =
no
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In the following question, the number of letters skipped in between adjacent letters in the series is 5. Which of the following series observes this rules?
XDIPV
no
XDKPV
no
XDJOU
no
XDJPV
yes
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When decoded, OPTRRE reads as PORTER. In the same way, what does the following read as?
EROPTR
ROPE
no
PROPER
no
PORT
no
REPORT
yes
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3 x 5 x 7 x 2 = 24, 2 x 4 x 6 x 8 = 22, 4 x 4 x 8 x 9 = ?
33
yes
25
no
144
no
1152
no
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If TRANSFER is coded as RTNAFSRE, then how ELEPHANT be coded in that code language?
LEPEHATN
no
LEPEAHTN
yes
LEEPAHTN
no
LEPEAHNT
no
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If MONKO is coded as 57637, then how KLJMN would be coded in the same code?
32456
no
34256
yes
35156
no
32546
no
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If A = 1, FAN = 21, then TAP = ?
73
no
37
yes
36
no
27
no
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In the colour scheme, if red stands for blue, blue stands for green, green stands for white, then what is the colour of the sky?
Red
yes
Green
no
Blue
no
White
no
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If 1 + 4 = 9, 2 + 8 = 18, 3 + 6 = 15 then 7 + 8 = ?
41
no
23
yes
30
no
32
no
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Some equations are solved on the basis of a certain system. On the basis, find out the correct answer from amongst the four alternatives for the unsolved equation a = 4(369)9, b = 6(246)4, c = 7(?)3
303
no
213
yes
413
no
503
no
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