Practice Question and Answer
8 Q: Find the number of triangles in the given figure.

2234 05fe48ad398f79f7f7fc7fc1e
5fe48ad398f79f7f7fc7fc1e
- 132false
- 228true
- 39false
- 420false
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Answer : 2. "28"
Q: The producers formed by the combustion of magnesium are -
2234 061275bc7dbe92e068b9111ff
61275bc7dbe92e068b9111ff- 1is acidicfalse
- 2is indifferentfalse
- 3alkalinetrue
- 4allfalse
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Answer : 3. "alkaline"
Explanation :
Therefore, the correct option is (C) Magnesium ribbon on burning in air produces: 'Magnesium oxide, heat and light'.
Q: Two bikers A and B start and ride at 75 km/hr and 60 km/hr respectively towards each other. They meet after 20 minutes. How far (in km) were they from each other when they started?
2234 05f2a70b057c6a23ea65d97eb
5f2a70b057c6a23ea65d97eb- 160 kmfalse
- 255 kmfalse
- 345 kmtrue
- 450 kmfalse
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Answer : 3. "45 km"
Q: Both skin and lung cancer are classified as carcinomas. 2234 05b5cc626e4d2b4197774b879
5b5cc626e4d2b4197774b879- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: Carcinomas are cancers that begin in tissues lining the inner or outer surfaces of the body where the DNA of the cells become damaged. Lung cancer and one type of skin cancer (squamous-cell carcinoma) are carcinomas. Hence, the given statement is TRUE.
Q: Statement: Properly fed and starved monkeys were made to run through a network of paths designed as a puzzle. It was observed that the starved monkeys could not run faster. This proved that the people with lower intelligence in poor countries are a victim of malnutrition.Course of action:a. The effects of nutrition on the intelligence of the monkeys is parallel to those on human beings.b. Captive monkeys are more intelligent than wild monkeys. 2234 05b5cc761e4d2b4197774fd1b
5b5cc761e4d2b4197774fd1b- 1Only b followsfalse
- 2Only a followstrue
- 3Both a & b followsfalse
- 4Neither a nor b followsfalse
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Answer : 2. "Only a follows"
Explanation :
Answer: B) Only a follows Explanation: The proper nourishment will make the monkeys or human beings work properly. So, the course of action I follows. Course of action II does not follow as there is no information about captive or wild monkeys.
Q: Direction: Two Statements are given following by four conclusions, I, II, III and IV. You have to consider that Statements to be true, even if they seem to beat variance from commonly known facts. You are to decide which of the given conclusions can definitely be drawn from the given Statements. Indicate your answer.
Statements:
All pens are pencils.
No pencil is monkey.
Conclusion:
I. No pen is monkey.
II. Some pens are monkey.
III. All monkeys are pens.
IV. Some monkeys are pens.
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5e900781d646bd6677cfa99cStatements:
All pens are pencils.
No pencil is monkey.
Conclusion:
I. No pen is monkey.
II. Some pens are monkey.
III. All monkeys are pens.
IV. Some monkeys are pens.
- 1Either conclusion II or III followsfalse
- 2Either conclusion II or IV followsfalse
- 3Only conclusion I followstrue
- 4All conclusion followsfalse
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Answer : 3. "Only conclusion I follows "
Q: A and B started a business investing the money in ratio 4:6, after 6 months B withdraw his investment and C joins him with twice the amount of B. At the end of the year total profit is Rs.3315. Find share of C ? 2233 05b5cc6c5e4d2b4197774ddd7
5b5cc6c5e4d2b4197774ddd7- 1Rs. 450false
- 2Rs. 1020false
- 3Rs. 765false
- 4Rs. 1530true
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Answer : 4. "Rs. 1530"
Explanation :
Answer: D) Rs. 1530 Explanation: Ratio of investments of A, B & C => Share of C = 1530 Share of B = 765 Share of A = 1020
Q: A cyclist cycles 8 km at 15 km/hr and a further 4 km at 20 km/hr. Find the average speed in km/hr.
2233 05eb5078effc62d0a81dd28e4
5eb5078effc62d0a81dd28e4- 116.8false
- 216.36true
- 315.71false
- 417.50false
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