Question
How many pairs of letters are there in the word
‘CHEMISTRY’ which has as many letters between them (both forward and backward direction) in the word as in the English alphabetical series?Solution
There are only two pair DE and ST in the word ‘CHEMISTRY’ which have as many letters between them (both forward and backward direction) in the word as in the English alphabetical series.
What will be the next number in the series?
2,5,11,23,47,?
4Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â 91Â Â Â Â Â Â Â Â Â Â Â 462Â Â Â Â Â Â Â Â Â 2763
18Â Â Â ...
7, 8, 12, 21, 37, ?
124    174    211    ?     254    264
...2, 9, 19, 32, 48, 67, ?
In each of the following questions the number series is given. One term of the series is denoted by x. You have to calculate of value of x and by using ...
(32.03 + 111.98) ÷ 18.211 = 89.9 – 20.23% of ?
(45)2 ÷ ∛729 + (35)2 ÷ 1.4 =?
24 ? 14 16 39 88.5
...123   125   129   132   ?   145
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