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Temperature on the Celsius scale (C) is related to temperature on the Fahrenheit scale (F) by the formula \(C = \frac{5}{9}(F— 32)\). What is the difference between a certain pair of temperatures on the Celsius scale?
(1) The difference between the temperatures on the Fahrenheit scale is 45°.
(2) The greater of the two temperatures is 30° on the Celsius scale
(1) The difference between the temperatures on the Fahrenheit scale is 45°.
(2) The greater of the two temperatures is 30° on the Celsius scale
26 Aug 2016, 00:58
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This is my first reply on GMATClub, so be gentle :D!
Well, my reasoning is
Assume case1 at celsius c1: C1 = 5/9(F1— 32)
and at celsius c2: C2 = 5/9(F2-32)
taking the difference between c1 and c2...
c1-c2 = 5/9 (f1-32) - 5/9 (f2-32)
c1-c2 = 5/9 (f1-f2)
c1-c2 = 5/9 (45)... through condition 1, which gives the difference in fahrenheit as 45
which gives you the difference in c1-c2.
Hence condition 1, is sufficient.
Well, my reasoning is
Assume case1 at celsius c1: C1 = 5/9(F1— 32)
and at celsius c2: C2 = 5/9(F2-32)
taking the difference between c1 and c2...
c1-c2 = 5/9 (f1-32) - 5/9 (f2-32)
c1-c2 = 5/9 (f1-f2)
c1-c2 = 5/9 (45)... through condition 1, which gives the difference in fahrenheit as 45
which gives you the difference in c1-c2.
Hence condition 1, is sufficient.
mishramukeshp
26 Nov 2016, 07:58
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NandishSS
Temperature on the Celsius scale (C) is related to temperature on the Fahrenheit scale (F) by the formula C = 5/9(F— 32). What is the difference between a certain pair of temperatures on the Celsius scale?
(1) The difference between the temperatures on the Fahrenheit scale is 45°.
(2) The greater of the two temperatures is 30° on the Celsius scale
Sorry for inconvenience formula edited
@Experts would you pls help me with this problem
(1) The difference between the temperatures on the Fahrenheit scale is 45°.
(2) The greater of the two temperatures is 30° on the Celsius scale
Sorry for inconvenience formula edited
@Experts would you pls help me with this problem
c=5/9F - (5/9)32
this is a linear equation. Which means that the difference between the value at celsius scale and fahrenheit scale will follow linear pattern (constant rate of growth). Thus, difference at one point is adequate for one to find out the difference in celsius scale. therefore, A is suff.
B merely gives a value. nothing can be predicted from it. Thus not suff.
Ans: A
