Maths Practice Question and Answer
8 Q: The average of 8 readings is 24.3, out of which the average of the first two is 18.5 and that of next three is 21.2. If the sixth reading is 3 less than seventh and 8 less than eight, what is the sixth reading?
1304 06024ea81a459a5782bf0d771
6024ea81a459a5782bf0d771- 127.6true
- 229.4false
- 324.8false
- 426.5false
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Answer : 1. "27.6"
Q: The value of a machine depreciates at the rate of 10% per annum. It was purchased 3 years ago. If its present value is Rs.53071.20, the purchase price of the machine was:
1135 06024e9e6835ee1737390482b
6024e9e6835ee1737390482b- 1Rs.72800true
- 2Rs.69680false
- 3Rs.84560false
- 4Rs.78400false
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Answer : 1. "Rs.72800"
Q: $$ {x^{8}+4\over{x^{4}+2x^{2}+2}}$$ is equal to
1091 060225c16ad295556282a4122
60225c16ad295556282a4122- 1$$ {x^{4}+2x^{2}-2}$$false
- 2$$ {x^{4}-2x^{2}+2}$$true
- 3$$ {x^{4}-2x^{2}-2}$$false
- 4Can’t be simplifiedfalse
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Answer : 2. "$$ {x^{4}-2x^{2}+2}$$"
Q: If the length of a rectangle is increased by 10% and the area is unchanged, then how much percent does the breadth decrease?
1090 060237f7ead295556282decb7
60237f7ead295556282decb7- 1$$ {100\over 11}{\%}$$true
- 2$$ {100\over 9}{\%}$$false
- 39%false
- 410%false
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Answer : 1. "$$ {100\over 11}{\%}$$"
Q:Read the following graph carefully and answer the related questions-
Total number of students (in thousands) participating in comitative exam in various cities.
What is the ratio of number of students appearing for competitive exam from city C and D together to those appearing from A, D and E together?
1077 060237ccbad295556282de8c5
60237ccbad295556282de8c5- 111:13false
- 220:43false
- 324:47true
- 437:20false
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Answer : 3. "24:47 "
Q:Read the following graph carefully and answer the related questions-
Total number of students (in thousands) participating in comitative exam in various cities.
What is the percentage of students appearing in competitive exam from city E to total number of students appearing for competitive exam from all the states?
1117 060237c5aad295556282de836
60237c5aad295556282de836- 115false
- 217false
- 319false
- 421true
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Answer : 4. "21"
Q:Read the following graph carefully and answer the related questions-
Total number of students (in thousands) participating in comitative exam in various cities.
What is the average number of students appearing in competitive exam from all the states together?
1741 0602379a32dc71d4148a57f88
602379a32dc71d4148a57f88- 133500false
- 23350false
- 317500false
- 4None of thesetrue
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Answer : 4. "None of these "
Q:Read the following graph carefully and answer the related questions-
Total number of students (in thousands) participating in comitative exam in various cities.
What is the ratio of number of students appearing tor competitive exam from city B to number of students appearing for competitive exam from city A?
1151 0602377822dc71d4148a571bd
602377822dc71d4148a571bd- 13:4false
- 213:16false
- 311:16false
- 4None of thesetrue
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