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krishna239455
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Is x + y < 1?krishna239455 wrote:Data Suffeciency problem.
Pls help to solve this problem
(1) x < 8/9 or x < 64/72; NOT sufficient.
(2) y < 1/8 or y < 9/72; NOT sufficient.
Combining (1) and (2), x + y < 64/72 + 9/72 or x + y < 73/72, which implies x may or may not be less than 1; NOT sufficient.
The correct answer is E.
