Sol. Clearly, total number of handshakes =[n(n-1)]/2 = 105.
Sol. We have: 15 × 2 = 30, 2 × 7 = 14, 7 × 9 = 63.
So, missing number = 9 × 15 = 135.
Q5. Pointing to a gentleman, Raj said, “His only brother is the father of my daughter’s father.” How is the gentleman related to Raj?
Sol. Father of Raj’s daughter’s father – Raj’s father.
So, theman’s brother is Raj’s father
or the man is the brother of Raj’s father i.e. Raj’s uncle.
Directions (6): In this question three statements are given followed by four conclusions (I), (II), (III) and (IV). You have to consider the statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statements.
All dogs are fruits.
No chair is a fruit.
Some chairs are cows.
I. Some cows are dogs.
II. Some chairs are dogs.
III. No chair is a dog.
IV. No dog is a cow.
(a) Only either I or IV follows
(b) None follows
(c) Only either I or IV and II follow
(d) Only either I or IV and III follow
Q7. If P denotes ‘multiplied by’, T denotes ‘subtracted from’, M denotes ‘added to’ and B denotes ‘divided by’, then 28 B 7 P 8 T 6 M 4 = ?
Sol. 28 ÷ 7 x 8 – 6 + 4 = 30
Q8. Arrange the following words according to dictionary arrangement:
Sol. Clearly, the correct alphabetical order of the given words is :
Epigene, Epilogue, Episode, Epitaxy, Epitome
Thus, the correct sequence is 3,5,2,1,4.
Q9. Select the related word from the given alternatives.
FUNGI: MYCOLOGY:: TISSUE: ??
Sol. Study of Fungi is Mycology, Similarly study of tissue is Histology.
Q10.If 5 * 3 = 19 and 8 * 5 = 49, then what should 6 * 4 be?
Sol. 5 × 3 = 15 + 22 (5 – 3) = 19
8 × 5 = 40 + 32 (8 – 5) = 49
6 × 4 = 24 + 22 ( 6 – 4) = 28
Q11.From the given words, select the word which cannot be formed using the letters of the given word: ILLUSTRIOUS
Sol. Trust cannot be formed from the letters of the ILLUSTRIOUS because it does not contain 2 “T”.
Q13.Select the related word from the given alternatives:
Dark :Light :: Noise:?
Sol. Light is opposite of dark.
Similarly Quiet is opposite of Noise.
Q14.Find the odd letters from the given alternatives?