Practice Question and Answer
8 Q: The total surface area of a hemisphere is 166.23 sq cm, find its radius?
2053 05d92c5529fdacf7928444073
5d92c5529fdacf7928444073- 14.2 cmtrue
- 28.4 cmfalse
- 31.4 cmfalse
- 42.1 cmfalse
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Answer : 1. "4.2 cm"
Q: A circular ground of radius 7 m is surrounded by a path of width 3.5 m. Find the area of path.
2053 05edf1f918c4c964f73d404ea
5edf1f918c4c964f73d404ea- 1202 sq.mfalse
- 2154 sq.mfalse
- 3192.5 sq.mtrue
- 4346.5 sq.mfalse
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Answer : 3. "192.5 sq.m"
Q: In how many different ways can the letters of the word 'ABYSMAL' be arranged ? 2053 05b5cc6c9e4d2b4197774df88
5b5cc6c9e4d2b4197774df88- 15040false
- 23650false
- 34150false
- 42520true
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Answer : 4. "2520"
Explanation :
Answer: D) 2520 Explanation: Total number of letters in the word ABYSMAL are 7 Number of ways these 7 letters can be arranged are 7! ways But the letter is repeated and this can be arranged in 2! ways Total number of ways arranging ABYSMAL = 7!/2! = 5040/2 = 2520 ways.
Q: What is Auto boxing and unboxing? 2053 05b5cc7cee4d2b41977751113
5b5cc7cee4d2b41977751113- Show AnswerHide Answer
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Answer :
Explanation :
Autoboxing is the process of converting a primitive type data into its corresponding wrapper class object instance. Example: Integer number = new Integer (100); // number is now refers to the object 100 Unboxing is the process of converting a wrapper instance into a primitive type. Example: Integer number = new Integer (100); int num = number;// without type casting number would be changed into int type
Q: Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of the work in
2053 05f2944c9a5ce9779bd25762d
5f2944c9a5ce9779bd25762d- 15 daysfalse
- 23 daystrue
- 39 daysfalse
- 46 daysfalse
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Answer : 2. "3 days "
Q: Four words have been given out of which three are alike in some manner, while one is different. Choose the odd one.
2053 160ffd5d3aabf492de4d7c11e
60ffd5d3aabf492de4d7c11e- 1Statutory Liquidity Ratiofalse
- 2Open Market Operationsfalse
- 3Taxationtrue
- 4Bank Ratefalse
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Answer : 3. "Taxation"
Q: A student scored 32 percent and failed by 6 marks. If he had scored 36 percent marks, he would have passed by 2 marks. What is the passing mark?
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5e325283d0aa6f23a8fc4409- 166false
- 275false
- 380false
- 470true
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Answer : 4. "70"
Q: Which of the following is not nucleon?
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5fe1bfc8ce32c8585c73a73c- 1Protonfalse
- 2Neutronfalse
- 3Both (A) and (B)false
- 4Positrontrue
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