Question 31

Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.
5 Θ 3=-7; 3 Θ 7=-11; 7 Θ 11=?

Solution

The pattern followed is that the product of the numbers is subtracted from the sum of the numbers.

Eg : 5 Θ 3 = $$(5+3)-(5\times3)=8-15=-7$$

and 3 Θ 7 = $$(3+7)-(3\times7)=10-21=-11$$

Similarly, 7 Θ 11 = $$(7+11)-(7\times11)=18-77=-59$$

=> Ans - (A)

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Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.5 Θ 3=-7; 3 Θ 7=-11; 7 Θ 11=?