Reasoning: 6C2 * 5C2 * 4C2 = 15*10*6 = 900.
Ans: (C)
Question: An analyst will recommend a combination of 2 industrial stocks, 2 transportation stocks, and 2 utility stocks. If the analyst can choose from 6 industrial stocks, 5 transportation stocks, and 4 utility stocks, how many different combinations of 6 stocks are possible?
Options:
(A) 1200
(B) 900
(C) 600
(D) 180
(E) 720
Rationale: There is no definite formula for finding prime numbers among 15 consecutive numbers. Hence the probability cannot be determined.
The answer: (E)
Question: Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odds or both primes is
Options:
(A) 10/17
(B) 10/19
(C) 46/105
(D) 11/15
(E) Cannot be determined
Reasoning: Local value of 4 = 4 x 100 = 400
Place value of 4 = 4
There fore = 4 x 400 = 1600
Ans: (E)
Question: Find the product of the localvalue and absolutevalue of 4 in 20468?
Options:
(A) 1000
(B) 1100
(C) 1200
(D) 1300
(E) 1600
Rationale: If the number is divisible by 9, it must also be divisible by 3. Only 7 yields such a number.
The answer: (D)
Question: The number N is 5,2H4, where H represents the ten's digit. If N is divisible by 9, what is the value of H?
Options:
(A) 1
(B) 3
(C) 5
(D) 7
(E) 9
Reasoning: It is clear that 22 x 46 = 10 x 55 + K + 11 x 40 K = 22
Ans: (A)
Question: The average mark obtained by 22 candidates in an examination is 46. The average of the first ten is 55 while the last eleven is 40 .The marks obtained by the 11th candidate is ?
Options:
(A) 22
(B) 0
(C) 19
(D) 18
(E) 16
Reasoning: 20 + 24 + 8 * 2 = 60/2 = 30
Ans: (C)
Question: The average age of 8 men increases by 2 years when two women are included in place of two men of ages 20 and 24 years. Find the average age of the women?
Options:
(A) 11
(B) 12
(C) 30
(D) 98
(E) 15