A certain city is served by subway lines A,B and C and numbers 1 2 and 3When it snows , morning service on B is delayedWhen it rains or snows , service on A, 2 and 3 are delayed both in the morning and afternoonWhen temp. falls below 30 degrees farenheit afternoon service is cancelled in either the A line or the 3 line,but not both.When the temperature rises over 90 degrees farenheit, the afternoon service is cancelled in either the line C or the3 line but not both.When the service on the A line is delayed or cancelled, service on the C line which connects the A line, is delayed.When service on the 3 line is cancelled, service on the B line which connects the 3 line is delayed.

1. On Jan 10th, with the temperature at 15 degree farenheit, it snows all day. On how many lines will service be
affected, including both morning and afternoon.

(A) 2
(B) 3
(C) 4
(D) 5

Ans. D

2. On Aug 15th with the temperature at 97 degrees farenheit it begins to rain at 1 PM. What is the minimum number
of lines on which service will be affected?

(A) 2
(B) 3
(C) 4
(D) 5

Ans. C

3. On which of the following occasions would service be on the greatest number of lines disrupted.

(A) A snowy afternoon with the temperature at 45 degree farenheit
(B) A snowy morning with the temperature at 45 degree farenheit
(C) A rainy afternoon with the temperature at 45 degree farenheit
(D) A rainy afternoon with the temperature at 95 degree farenheit

Ans. B