81. Give the greatest pair of twin primes which are below 100?
Answer: 71,73
Explanation:Here is no explanation for this answer
Workspace
Cognizant
82. A bag contains 5 oranges, 4 bananas and 3 apples. Rohit wants to eat a banana or an apple.He draws a fruit from the bag randomly. What is the probability that he will get a fruit of this choice?
Answer: 7/12
Explanation:Total fruits = 12 (5+4+3)
Chances of selecting banana or apple = (4+3) = 7
So, probability =7/12
Workspace
Cognizant
83. Given that the interest is only earned on principal, if an investment of Rs.1000.00 amount to Rs.1440.00 in two years, then what is the rate of interest earned?
Answer: 20%
Explanation:Here is no explanation for this answer
Workspace
Cognizant
84. The number of ways in which 15 students A1, A2 -------A15 can be ranked, such that A4 is always above A8 is
Answer: 15!/2
Explanation:When A8 is in 2nd position A4 can occupy only 1st.
When A8 is in 3rd position A4 can occupy only 1st or 2nd.
So the number of ways in which A4 and A8 can be arranged = 1+2+...+14 = 14*15/2
In the remaining 13 positions other students can be permuted in 13! ways.
Hence total number of ways = 13! * 14*15/2 = 15!/2
Workspace
Cognizant
85. Find the odd one out
Answer: PSW
Explanation:Here is no explanation for this answer
Workspace
Cognizant
86. Find the odd one out
Answer: TUS
Explanation:Here is no explanation for this answer
Workspace
Cognizant
87. Find the odd one
Answer: HLO
Explanation:Here is no explanation for this answer
Workspace
Cognizant
88. Find the odd man one
Answer: E6L
Explanation:c+5=h e+6=k m+4=q t+3=w
Workspace
Cognizant
89. If "Apples are red" is coded as 541, "My eye swollen" is coded as 927, "fear of dark" is coded as 368 , then what does "Apple of my eye" stand for?
Answer: 5692
Explanation:The value of apple is 5.
The value of of is 6
The value of my is 9
The value of eye is 2.
So, coding for apple of my eye is 5692
Workspace
Cognizant
90. D and E have three children A, B and C. F is A's spouse. D is the grandfather of G. B is the mother of H. F is G's father. Who is the male child of D and E?
Answer: C
Explanation:Here is no explanation for this answer
Workspace
Cognizant
Login/Register
