Practice Question and Answer
8 Q: A tank can be filled by A in 60 minutes and emptied by B in 75 minutes. The tank is half filled and Ravi wants to fill the tank but opens B mistakenly and realizes after half hour and closed tap B. He then opens A and tank is completely filled in _______ minutes.
1771 064e75543de1aa1b70fdef7a0
64e75543de1aa1b70fdef7a0- 148false
- 254true
- 350false
- 464false
- 5None of thesefalse
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Answer : 2. "54"
Q: Six years ago, the ratio of ages of A to B was 7 : 5. After 4 years from now, the ratio of their ages will be 11 : 9. What is A’s age at present?
1771 0649e8497cae316dfef9411dc
649e8497cae316dfef9411dc- 1$$24{1\over 2}years$$false
- 2$$22{1\over 2}years$$false
- 3$$23{1\over 2}years$$true
- 4$$21{1\over 2}years$$false
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Answer : 3. "$$23{1\over 2}years$$"
Q: National Cancer Awareness Day is observed on which date ?
1771 05dc91bb7513f8a7589a09adf
5dc91bb7513f8a7589a09adf- 1November 7true
- 2November 6false
- 3November 8false
- 4November 10false
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Answer : 1. "November 7"
Q: Russia’s Vladimir Putin and North Korea’s Kim Jong Un met face-to-face for the first time. The meeting was held at_______.
1771 05dca7c7785d84c59cfb94644
5dca7c7785d84c59cfb94644- 1Saint Petersburgfalse
- 2Novosibirskfalse
- 3Moscowfalse
- 4Vladivostoktrue
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Answer : 4. "Vladivostok"
Q: Coral reefs are formed by _____ 1771 05b5cc7d4e4d2b4197775140c
5b5cc7d4e4d2b4197775140c- 1volcanic rocksfalse
- 2marine sedimentsfalse
- 3chlorine material precipitated from sea waterfalse
- 4tiny colonial marine animals which construct limestone skeleton materialtrue
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Answer : 4. "tiny colonial marine animals which construct limestone skeleton material"
Explanation :
Answer: D) tiny colonial marine animals which construct limestone skeleton material Explanation:
Q: Which of the following is the strongest hydracid known?
1771 063c7c1e71c47ef334bdd967e
63c7c1e71c47ef334bdd967e- 1HCNfalse
- 2Hclo4true
- 3HCLfalse
- 4Hno3false
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Answer : 2. "Hclo4"
Q: In ΔPQR , ∠R=54° the perpendicular bisector of PQ at S meets QR at T. If ∠TPR =46°, then what value of (in degree) ∠PQR?
1771 05f2e3d04be9f31290fbc5f4f
5f2e3d04be9f31290fbc5f4f- 125false
- 250false
- 375false
- 440true
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Answer : 4. "40"
Q: A lately-discovered amphibian from Panama will be named after which politician?
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5e044a05f42cbc3da6fc9c15- 1Donald Trumptrue
- 2Abraham Linconfalse
- 3Narender Modifalse
- 4None of thesefalse
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