Hope you have solved all the previous Question A Day Questions HERE. We today bring to you Day 4 questions of CAT 2015 Question a Day. We are keeping in mind the expected level of CAT 2015. Hence, will not be sharing too hard a question just to create a buzz which at the end of the day, doesn’t solve any purpose for you.
CAT 2015 Question a Day : Day 4
Albinism is a rare genetic condition that inhibits the production of melanin, or pigmentation, in the skin and hair. People born with albinism are unusually susceptible to sunburn, melanoma, and a range of other health issues that are generally connected to excessive exposure to the sun.
The statements above, if true, provide the most sup port for which of the following conclusions?
A. People born with albinism develop other biological protections against melanoma and other sun-related health issues.
B. Humans with a high production of melanin can easily ignore health issues related to exposure to the sun.
C. When a non-albino person gets sunburn, the amount of melanin produced by that person decreases.
D. In humans, melanin plays a role in protecting the skin from developing sunburn and other sun-related ailments.
E. It is not possible for a person born with albinism to adopt other artificial protective measures against excessive exposure to the sun.
Official Answer: D
The argument lack the gap that the production of melanin can prevent sunburn, melanoma, and a range of other health issues (that are generally connected to excessive exposure to the sun.)
Only the debatable answer is between B and D
B)Humans with a high production of melanin can easily ignore health issues related to exposure to the sun.
D)In humans, melanin plays a role in protecting the skin from developing sunburn and other sun-related ailments.
Choice D is exactly the gap between in the argument. So, this is the correct one. Choice B wrong partly because it is too extreme.
Triangle ABC has vertices A (0, 0), B (0, 6) and C (9, 0). The points P and Q lie on side AC such that AP = PQ = QC. Similarly, the points R and S lie on side AB such that AR = RS = SB. If the line segments PB and RC intersect at X, then the slope of the line AX is ____________ (Type in the Answer)
Official Answer: 2/3 or 0.66
There is a country where everyone wants a boy. Every family continues to have babies till a boy is born. If the probability of having a girl or a boy is the same, what is the proportion of boys to girls after some time in that country? _____________ (Type in the Answer)
Official Answer: 1:1
- Imagine you have 10 couples who have 10 babies. 5 will be girls. 5 will be boys. (Total babies made: 10, with 5 boys and 5 girls)
- The 5 couples who had girls will have 5 babies. Half (2.5) will be girls. Half (2.5) will be boys. Add 2.5 boys to the 5 already born and 2.5 girls to the 5 already born. (Total babies made: 15, with 7.5 boys and 7.5 girls.)
- The 2.5 couples that had girls will have 2.5 babies. Half (1.25) will be boys and half (1.25) will be girls. Add 1.25 boys to the 7.5 boys already born and 1.25 girls to the 7.5 already born. (Total babies: 17.5 with 8.75 boys and 8.75 girls).
- And so on, maintaining a 50/50 population.