How many pages does today's newspaper consist of?
(1) Yesterday's paper and today's papers have a total of 66 pages.
(2) Yesterday's paper has three fewer pages than twice today's paper.
The OA is C.
I don't know how can I use both statements to get an answer. Experts, can you help me? Please. <i class="em em-pray"></i>
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How many pages does todays newspaper consist of?
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mbawisdom
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Y = pages in yesterday's paperVJesus12 wrote:How many pages does today's newspaper consist of?
(1) Yesterday's paper and today's papers have a total of 66 pages.
(2) Yesterday's paper has three fewer pages than twice today's paper.
The OA is C.
I don't know how can I use both statements to get an answer. Experts, can you help me? Please. <i class="em em-pray"></i>
T = pages in today's paper
(1) Y + T = 66 --> not sufficient as we do not know Y
(2) Y = 2T - 3 --> not sufficient as we do not know Y
Together: solve simultaneously (you don't need to do this step but for the sake of completeness the solution is below)
put Y from (2) into (1) then solve for T:
Y + T = 66
2T - 3 + T = 66
3T - 3 = 66
3T = 69
T = 23
