neha283 wrote:
Can someone explain the last 2 lines of this passage clearly? i faltered in assessing the answer choices because of this.
TIA!
Hi,
"A recently completed study has revealed that, on the annual cognitive tests given to Amaretti's first-graders in each of last ten years,
nearly 25% of the students scoring in the top fifth of the class, but only about 2% of those scoring in the bottom fifth, were born in November."
-- It says that:
1. Every year for the last 10 years, a cognitive test has been held.
2. The test takers were 1st grade students.
3. Based on the performance of the test takers, a study has been done.
4. The study revealed that --> (Nearly 25% OF the students scoring in the TOP 1/5th of the class) AND (About 2% OF the students scoring in the BOTTOM 1/5th of the class) were born in November.
Because pregnancy lasts nine months, only the mothers of children born in November would not have fasted during the entire pregnancies; therefore, the ritual fasting must have detrimental effects on developing babies.
-- This mentions that:
1. Pregnancy lasts for 9 months.
2. Only the mothers of children born in November would not have fasted during the entire pregnancies. Why is it so? Consider this -> The fasting ritual is practiced in December and January. Pregnancy lasts 9 months and the baby is born after the completion of 9 months. And if the months of December and January should not fall DURING the pregnancy, the only way this can happen is if it (pregnancy) starts in February. Pregnancy would last till the end of October, or November. The baby would then be born in November.
Hence ONLY the mothers of children born in November didn't fast during the entire pregnancy.
The conclusion is that fasting causes a detrimental effect in the cognitive abilities of the children whose mothers fasted during pregnancy.
We can eliminate some of the options:
A --> can be eliminated since it says about data before 10 years.
B --> It doesn't mention the number of students being absent during the tests - it can be 1 student, or more. B is eliminated.
D --> Talks about physical deformities of children. Eliminated.
Thank you for the detailed explanation, the passage is more clear now. However, option (C) tells us about the birth duration of its students which is year round, how does it weaken the claim that most students must be born in november since fasting causes a detrimental effect in the cognitive abilities of the children whose mothers fasted during pregnancy. ?