Practice Question and Answer
8Q: Which country has launched its first environmental research satellite 'Venus' ? 1368 05b5cc6cde4d2b4197774e190
5b5cc6cde4d2b4197774e190- 1Russiafalse
- 2Indiafalse
- 3Chinafalse
- 4Israeltrue
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Answer : 4. "Israel"
Explanation :
Answer: D) Israel Explanation:
Q: Which of the following software firm will acquire Brilliant Basics, Product Design and Customer Experience (CX) company ? 1328 05b5cc6cde4d2b4197774e18b
5b5cc6cde4d2b4197774e18b- 1Infosystrue
- 2Nautics Technologyfalse
- 3Googlefalse
- 4Source code software co.false
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Answer : 1. "Infosys"
Explanation :
Answer: A) Infosys Explanation:
Q: Which country has signed an agreement with India for transfer of sentenced prisoners ? 1409 05b5cc6cde4d2b4197774e186
5b5cc6cde4d2b4197774e186- 1Japanfalse
- 2Ghanafalse
- 3Somaliatrue
- 4Italyfalse
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Answer : 3. "Somalia"
Explanation :
Answer: C) Somalia Explanation: Signing the Agreement with Somalia shall facilitate the Indian prisoners imprisoned in Somalia or vice-versa to be near to their families, for serving remaining part of their sentence and shall facilitate their social rehabilitation.
Q: Israel’s Rafael Defense Systems ltd has formed a joint venture with ________ to produce anti-tank guided missiles for the Indian armed forces. 1159 05b5cc6cce4d2b4197774e181
5b5cc6cce4d2b4197774e181- 1Goa Shipyardfalse
- 2Hindustan Aeronautics Limitedfalse
- 3Kalyani Grouptrue
- 4Hindustan Aeronautics Limitedfalse
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Answer : 3. "Kalyani Group"
Explanation :
Answer: C) Kalyani Group Explanation:
Q: The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ? 1353 05b5cc6cce4d2b4197774e17c
5b5cc6cce4d2b4197774e17c- 1384false
- 296false
- 3192true
- 4206false
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Answer : 3. "192"
Explanation :
Answer: C) 192 Explanation: Let the third subject marks be 'x'=> Second subject marks = 2x=> Third subject marks = 4xGiven avg = 224x + 2x + 4x = 224 x 3=> 7x = 224 x 3=> x = 96Hence, Second subject marks = 2x = 2 x 96 = 192.
Q: In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was ? 1980 05b5cc6cce4d2b4197774e177
5b5cc6cce4d2b4197774e177- 115 kgfalse
- 225 kgfalse
- 335 kgfalse
- 445 kgtrue
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Answer : 4. "45 kg"
Explanation :
Answer: D) 45 kg Explanation: Let the ratio of initial quantity of oils be 'x' => 4x, 5x & 8x.Let k be the quantity of third variety of oil in the final mixture.Let the ratio of initial quantity of oils be 'y'From given details,4x + 5 = 5y ..... (1)5x + 10 = 7y .....(2)8x + k = 9y ......(3) By solving (1) & (2), we getx = 5 & y = 5 From (3) => k = 5 Therefore, quantity of third variety of oil was 9y = 9(5) = 45kg.
Q: A person can row 8 1/2 km an hour in still water and he finds that it takes him twice as long to row up as to row down the river. The speed of the stream ? 932 05b5cc6cce4d2b4197774e172
5b5cc6cce4d2b4197774e172- 11.78 kmphfalse
- 22.35 kmphfalse
- 32.83 kmphtrue
- 43.15 kmphfalse
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Answer : 3. "2.83 kmph"
Explanation :
Answer: C) 2.83 kmph Explanation: Given speed of the person = 8 1/2 = 17/2 kmphLet the speed of the stream = x kmphspeed of upstream = 17/2 - xspeed of downstream = 17/2 + xBut given that,2(17/2 - x) = 17/2 + x=> 3x = 17/2=> x = 2.83 kmph.
Q: Define "Correlated Subqueries" ? 1339 05b5cc6cce4d2b4197774e171
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Answer :
Explanation :
In a SQL Database, a 'correlated subquery' is a kind of sub query yet connected subquery is dependent on another query for a value that is returned. In case of execution, the sub query is executed first and afterwards the correlated query will be executed.