Practice Question and Answer
8Q: A batsman scores 26 runs and increases his average from 14 to 15. Find the runs to be made if he wants top increasing the average to 19 in the same match ? 3290 05b5cc745e4d2b4197774fa22
5b5cc745e4d2b4197774fa22- 174true
- 279false
- 372false
- 460false
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Answer : 1. "74"
Explanation :
Answer: A) 74 Explanation: Number of runs scored more to increse the ratio by 1 is 26 - 14 = 12To raise the average by one (from 14 to 15), he scored 12 more than the existing average.Therefore, to raise the average by five (from 14 to 19), he should score 12 x 5 = 60 more than the existing average. Thus he should score 14 + 60 = 74.
Q: If cos2α + cos2β = 2, then the value of tan3 α + sin5 β is :
3290 05df1f6610183ea49d62ce47e
5df1f6610183ea49d62ce47e- 1– 1false
- 20true
- 31false
- 4$$ {1\over √3 } $$false
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Answer : 2. "0"
Q: What is the probability of an impossible event? 3289 05b5cc69ee4d2b4197774c995
5b5cc69ee4d2b4197774c995- 10true
- 2-1false
- 30.1false
- 41false
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Answer : 1. "0"
Explanation :
Answer: A) 0 Explanation: The probability of an impossible event is 0. The event is known ahead of time to be not possible, therefore by definition in mathematics, the probability is defined to be 0 which means it can never happen. The probability of a certain event is 1.
Q:Directions: Read each sentence to find out if there is any error in it. The error, if any will be in one part of the sentence. The number of that part is the answer if there is no error, the answer is (e).
Not only the (a)/ students but also (b)/ the principal were(c)/ laughing at the joke he cracked.(d)/No error (e).
3289 0617916872666b72074c78c7f
617916872666b72074c78c7f- 1Afalse
- 2Bfalse
- 3Ctrue
- 4Dfalse
- 5Efalse
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Answer : 3. "C"
Q: Two dice are rolled simultaneously. Find the probability of getting a total of 9. 3286 05b5cc7d1e4d2b41977751268
5b5cc7d1e4d2b41977751268- 11/3false
- 21/9true
- 38/9false
- 49/10false
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Answer : 2. "1/9"
Explanation :
Answer: B) 1/9 Explanation: S = { (1, 1), (1, 2), (1, 3), (1, 4),(1, 5), (1, 6), (2, 1), (2, 2),.........(6, 5), (6, 6) } => n(S) = 6 x 6 = 36 E = {(6, 3), (5, 4), (4, 5), (3, 6) } => n(E) = 4 Therefore, P(E) = 4/36 = 1/9
Q: The beach sands of Kerala are rich in
3285 05d7b7e573b63ff29cdecf6e3
5d7b7e573b63ff29cdecf6e3- 1Calciumfalse
- 2Radiumfalse
- 3Thoriumtrue
- 4Manganesefalse
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Answer : 3. "Thorium"
Q: The 'Neticket' scheme, which allows a passenger to fly without ever visiting a reservation counter has been introduced by : 3285 05b5cc7c4e4d2b41977750bfb
5b5cc7c4e4d2b41977750bfb- 1Jet Airwayafalse
- 2Sahara Airfalse
- 3Indian Airlinestrue
- 4None of thesefalse
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Answer : 3. "Indian Airlines"
Explanation :
Answer: C) Indian Airlines Explanation:
Q: Directions: A string of words is fed into a computing machine. It processes the input and gives an output in the following manner: Input: Honesty is the best policy. Step 1: is Honesty the best policy Step 2: is the Honesty best policy Step 3: is the best Honesty policy Step 4: is the best policy Honesty Output: is the best policy Honesty Now, If the input is "A rolling stone gathers no moss", what will be the fifth word in the string after 4 steps? 3284 05b5cc6bde4d2b4197774d8f2
5b5cc6bde4d2b4197774d8f2- 1Mossfalse
- 2Nofalse
- 3Stonefalse
- 4Atrue
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Answer : 4. "A"
Explanation :
Answer: D) A Explanation: For the input "A rolling stone gathers no moss", the steps followed are: Step 1: rolling A stone gathers no moss Step 2: rolling stone A gathers no moss Step 3: rolling stone gathers A no moss Step 4: rolling stone gathers no A moss After 4 steps the fifth word is "A".