Question 1

How many different committees can be formed from a group of two women and four men if three people are on the committee and at least one member must be a woman?

Options :

A : 6

B : 8

C : 10

D : 12

E : 16

Answer: A

Question 2

Two cars are traveling on the same road towards each other. If car A is traveling at a speed of 120 km/h and car B is traveling 15% slower, how much time will it take the cars to meet if the initial distance between the two is 668.4 km and car A started to drive one hour and a half before car B started?

Options :

A : one hours and 30 minutes

B : two hours

C : two hours and 12 minutes.

D : three hours and 15 minutes.

E : three hours and 18 minutes

Answer: C

Question 3

A Cuban cigar would cost 1 dollar less than 1.5 times a French cigar, had the French cigar cost 0.7 dollar less than it does now. An Arabian cigar costs 50 cents more than 1.5 times the Cuban cigar. The three cigars together cost 74.7 dollars. What is the price of the French cigar?

Options :

A : 16.7$

B : 23$

C : 25.5$

D : 35$

E : 37.4$

Answer: A

Question 4

Two decades after the Emerald River Dam was built, none of the eight fish species native to the Emerald River was still reproducing adequately in the river below the dam. Since the dam reduced the annual range of water temperature in the river below the dam from 50 degrees to 6 degrees, scientists have hypothesized that sharply rising water temperatures must be involved in signaling the native species to begin the reproductive cycle. Which of the following statements, if true, would most strengthen the scientists’ hypothesis?

Options :

A : The native fish species were still able to reproduce only in side streams of the river below the dam where the annual temperature range remains approximately 50 degrees.

B : Before the dam was built, the Emerald River annually overflowed its banks, creating backwaters that were critical breeding areas for the native species of fish

C : The lowest recorded temperature of the Emerald River before the dam was built was 34 degrees, whereas the lowest recorded temperature of the river after the dam was built has been 43 degrees.

D : Nonnative species of fish, introduced into the Emerald River after the dam was built, have begun competing with the declining native fish species for food and space.

E : Five of the fish species native to the Emerald River are not native to any other river in North America

Answer: A

Question 5

Fire ants have invaded much of the southern United States and, as a result, horned lizards have disappeared in invaded areas, because the fire ants, which sting aggressively, kill the young lizards and eliminate the harvester ants that are the lizards’ primary food. Populations of horned lizards have declined even in those southern localities that as yet remain free of fire ants, but ecologists believe that decline is also attributable to the southern states’ invasion by fire ants? Which of the following, if true, provides the strongest justification for the ecologists’ belief?

Options :

A : Colonies of harvester ants in areas that had previously been free of fire ants are neither physically nor behaviorally equipped to withstand an attack by invading fire ants

B : In the regions to which the fire ants are native, predators of fire ants keep the fire ant population from becoming a threat to other animals

C : Publicity about the invading fire ants’ aggressive stinging has encouraged the extensive use of ant baits and poisons as preventative measures

D : In southern areas that remain free of the invading fire ants, populations of lizards other than horned lizards have declined

E : Some of the populations of horned lizards in southern localities that remain free of fire ants began declining before the fire and invasion of the southern states

Answer: A

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