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If 12x16 = 188 and 14x18 = 248, then find the value of 16x20 = ?
The pattern followed is that 4 is subtracted from the product of the numbers.
Eg : $$(12\times16)-4=192-4=188$$
and $$(14\times18)-4=252-4=248$$
Similarly, $$(16\times20)-4=320-4=316$$
=> Ans - (C)
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