SSC CGL 19 Oct 2014 Shift 2 Paper

Question : 30 of 200

Marks: +1, -0

Some equations have been solved on the basis of a certain operation. Find the correct answer for the unsolved equation on that basis.
If 73 * 17 = 45 and 68 * 40 = 54, then 83 * 15 = ?

Validate

Solution:

73 * 17 = 45
⇒

{73+17}/2

{90}/2

= 45
68 * 40 = 54
⇒

{68+40}/2

{108}/2

= 54
Similarly,
83 * 15 = ?

{83+15}/2

{98}/2

= 49

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