

Directions: Select the correct alternative from the given choice.
A wife and her husband invite 8 couples to their house and assign each person (including) themselves) a number between 1 and 18. The host (wife) assigned the number 1 to herself. The couples start dancing.
The only possible pairings are 18 – 7 – 8, 16 – 9, 15 – 1, 14 + 2, 13 – 2, 12 – 4, 11 – 5 and 10 – 6.
∴ 5 is paired with 11.
Directions: Select the correct alternative from the given choice.
Mr. Ghosh took his students on a picnic to the local Zoo. In the first enclosure they saw four monkeys A, B, C and D each eating a different fruit seated at four different places. It is known that
D eats the Guava and C is near the rocks is the true statement.
Directions: Read the rules listed below.
Is abcd , four digit positive number , a perfect square?
Explanation: Though ,it is correct that all the perfect square no.s which have four at the unit’s place ,would always have even number at the ten’s place, but the vice-versa is not true.
Directions: Each question is followed by two statements.
You have to decide whether the information provided the statements is sufficient for answering the question.
A certain English word has three vowels (not necessarily distinct). What is the number of O’s in the word?
(1)3
(2)2
(3)1
(4)4
Explanation: As statement A does not mention anything about vowe! O, statement A alone is not sufficient.
From statement B, we have the given word as
– REPUBLIC DAY. The vowels in this word are A, E, I and U.
As the required word is not having any of these vowels, it has all the three vowels as O.
• Statement B alone is sufficient.
Directions: Each problem contains a question and two statements giving certain data.
You have to select the correct answer from [1] to [4] depending on the sufficiency of the data given in the statements to answer the question.
The number of boys in grade 7 is equal to the number of girls in grade 8. If 2 students are selected at random, one from the 7th grade and one from the 8th grade, which of the two is more likely to be a girl?
Explanation: Leg g be the number of girls in grade 7. Then using statement I, boys in grade 8 = g – 25.
From statement II, we know that girls in grad 8 = g + 25 – 10 = g + 15.
Hence, boys in grade 7 = g + 15.
To answer the question we need to compare the ratio of girls in grade 7 out of total students of grade 7, and girls in grade 8 out of total students in grade 8.
i.e. . For some of values of g, first fraction is smaller, while for other values, the second may be smaller. Hence [4]