74 : 33 and 52: _
(A) 21
(C) 32
(B) 33
(D) 27
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The missing term is 21
GIVEN
74 : 33 and 52: _
TO FIND
The missing term.
SOLUTION
We can simply solve the above problem as follows;
Let the missing term = x
The equation can be rewritten as;
74:33 and 52:x
Let us see how first ratio is formed.
74:33
7+4 = 11 ×3 = 33
Hence, 74:33
So the pattern is that the digits of thr first number is added and the resultant is multiples by 3
Therefore,
52:x
5+2 = 7×3 = 30
So,
52:21
Hence, The missing term is 21
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