Maths Practice Question and Answer
8 Q: HCF and LCM of two numbers are 7 and 140 respectively. If the numbers are between 20 and 45, the sum of the numbers is:
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5f06e68bb13c2d244adae0e2- 163true
- 256false
- 370false
- 477false
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Answer : 1. "63 "
Q: A man can row 30 km upstream and 44 km downstream in 10 hours. Also, he can row 40 km upstream and 55 km downstream in 13 hours. The rate of the current is –
1391 0600e8c0f377d750b4eb46533
600e8c0f377d750b4eb46533- 13 km / htrue
- 23.5 km / hfalse
- 34 km / hfalse
- 44.5 km / hfalse
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Answer : 1. "3 km / h "
Q: If x = b+c -2a, y=c+a-2b, z=a+b-2c, then the value of x2+y2-z2+2xy is :
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5f1ebef0a844e17b150e96d3- 1a-b+cfalse
- 2a+b-cfalse
- 30true
- 4a+b+cfalse
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Answer : 3. "0"
Q:Direction : Each of the questions below consists of a question and three statements numbered I, II and III given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.
What will the area of a regular pentagon?
I. The length of each side is 12 cm.
II. The measure of each angle is 108 degrees.
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5ea8f936a63dac4c26cdeb28I. The length of each side is 12 cm.
II. The measure of each angle is 108 degrees.
- 1The data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question.true
- 2The data in statement II alone is sufficient to answer the question, while the data in statement I alone is not sufficient to answer the question.false
- 3The data in statement I alone or in statement II alone is sufficient to answer the question.false
- 4The data in both the statements I and II is not sufficient to answer the question.false
- 5The data in both the statements I and II together is necessary to answer the question.false
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Answer : 1. "The data in statement I alone is sufficient to answer the question, while the data in statement II alone is not sufficient to answer the question."
Q:Study the given graph carefully to answer the questions that follow:
If carpenter X and carpenter Y were to make a chair together how many days would they take?
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5d85cf58a08f7a408051b2b8- 11 Daysfalse
- 24 daysfalse
- 33 daysfalse
- 42 daysfalse
- 5None of thesetrue
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Answer : 5. "None of these "
Q:Directions: Study the bar-graph given below & answer the questions.
Pie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400
If total no. of students in school F is 820. Then girls in school F is approximately what percent more/less than total boys in school B?
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5e93dde09255c93bdf02658cPie-chart given below shows the percentage distribution of total no. of boys in six different Schools.
Total Boys in all schools together = 6400
- 165%true
- 274%false
- 358%false
- 478%false
- 555%false
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Answer : 1. "65%"
Q: Find the value of n when $$ {n=\sqrt{n+ 2 \sqrt{n+2\sqrt{n+2\sqrt{3n}}}}}$$
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5f59ced893cd3236360f81d8- 11false
- 23true
- 39false
- 412false
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Answer : 2. "3"
Q: The average of 30 numbers is 15. The average of the first 18 numbers is 10 and that of the next 11 numbers is 20. The last number is
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62ff8151047feb0792713d97- 156false
- 252false
- 360false
- 450true
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Answer : 4. "50"
Explanation :
