प्रश्न और उत्तर का अभ्यास करें
8प्र: Rajeev start a business with Rs. 10000, Deepu joins him after 2 month with 20% more investment than Rajeev, after 2 month Shakti joins him with 40% less than Deepu. If the profit earned by them at the end of the year is equal to the twice of the difference between investment of Rajeev and ten times the investment of Shakti. Find the profit of Rajeev ? 4977 05b5cc6c6e4d2b4197774de2c
5b5cc6c6e4d2b4197774de2c- 150000false
- 248000false
- 338000true
- 440000false
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उत्तर : 3. "38000"
व्याख्या :
Answer: C) 38000 Explanation: Here from the given information, The ratio of investments of Rajeev, Deepu & Shakti is R : D : S = (10000 × 12) : (12000 × 10) : (7200 × 8) = 25 : 25 : 12 Now the Profit = 2 × (72000-10000) = 124000 Share of Rajeev = 124000 x 25/62 = 48000 Profit of Rajeev = 48000 - 10000 = 38000
प्र: The difference between circumference and semidiameter of a circle is 37 cm. What is the diameter of the circle ? 1556 05b5cc6c6e4d2b4197774de27
5b5cc6c6e4d2b4197774de27- 118 cmfalse
- 212 cmfalse
- 316 cmfalse
- 414 cmtrue
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उत्तर : 4. "14 cm"
व्याख्या :
Answer: D) 14 cm Explanation: circumference of a circle = 2πr => 2 × 22/7 × r – r = 37 => 37/7 × r = 37 => r = 7 cm. Diameter D = 2r = 7×2 = 14 cm.
प्र: Manish completes a work in 20 days. After 8 days Sriram joined the work. In how many days will the work be completed ? Statements : I. Sriram takes twice the time than Manish to complete the work.II. Sriram completes half the work in 15 days. 1452 05b5cc6c6e4d2b4197774de22
5b5cc6c6e4d2b4197774de22- 1Statement I alone is sufficient to answer the questionfalse
- 2Statement II alone is sufficient to answer the questionfalse
- 3Either the statements I & II is sufficient to answer the questiontrue
- 4Neither the statements I & II is sufficient to answer the questionfalse
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उत्तर : 3. "Either the statements I & II is sufficient to answer the question"
व्याख्या :
Answer: C) Either the statements I & II is sufficient to answer the question Explanation: From statement I, Time taken by Sriram to complete the work = 40 days From statement II, Time taken by Sriram to complete the wok = 30 days So from both either by statement I or statement II we can find the time to complete the work.
प्र: Technology giant Microsoft's India-born CEO ___________ has written his first book "Hit Refresh". 2213 05b5cc6c6e4d2b4197774de1d
5b5cc6c6e4d2b4197774de1d- 1Satya Nadellatrue
- 2Indra Nooyifalse
- 3Kiran Mazumdarfalse
- 4Sundar Pichaifalse
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उत्तर : 1. "Satya Nadella"
व्याख्या :
Answer: A) Satya Nadella Explanation:
प्र: The length, breadth and height of a room are in the ratio 7:3:1. If the breadth and height are doubled while the length is halved, then by what percent the total area of the 4 walls of the room will be increased ? 1640 05b5cc6c6e4d2b4197774de18
5b5cc6c6e4d2b4197774de18- 190%true
- 288%false
- 385%false
- 484%false
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उत्तर : 1. "90%"
व्याख्या :
Answer: A) 90% Explanation: Let length, breadth and height of the room be 7, 3, 1 unit respectively. Area of walls = 2(l+b)xh = 2(7+3)x1 = 20 sq. unit. Now, length, breadth and height of room will become 3.5, 6 and 2 respectively. Area of walls = 2(l+b)xh = 2(3.5+6)x2 = 38 sq. unit. % Increase in the area of walls = (38-20)x100/20 = 90%.
प्र: China and Pakistan air forces have launched _________ joint air exercise in China. 1499 05b5cc6c6e4d2b4197774de13
5b5cc6c6e4d2b4197774de13- 1Black Flagfalse
- 2Desert Eaglefalse
- 3Red Flagfalse
- 4Shaheentrue
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उत्तर : 4. "Shaheen"
व्याख्या :
Answer: D) Shaheen Explanation: The air forces of China and Pakistan began a joint training exercise SHAHEEN and deployed their latest fighter jets and AWACS aircraft.
प्र: Nine different letters of alphabet are given, words with 5 letters are formed from these given letters. Then, how many such words can be formed which have at least one letter repeated ? 1590 05b5cc6c6e4d2b4197774de0e
5b5cc6c6e4d2b4197774de0e- 143929true
- 259049false
- 315120false
- 40false
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उत्तर : 1. "43929"
व्याख्या :
Answer: A) 43929 Explanation: Number of words with 5 letters from given 9 alphabets formed = 95 Number of words with 5 letters from given 9 alphabets formed such that no letter is repeated is = 9P5 Number of words can be formed which have at least one letter repeated = 95 - 9P5 = 59049 - 15120 = 43929
प्र: World Suicide Prevention Day (WSPD) is observed every year on _______ 1515 05b5cc6c6e4d2b4197774de04
5b5cc6c6e4d2b4197774de04- 11 Septemberfalse
- 27 Septemberfalse
- 3D) is observed every year on _______ A) 1 September B) 7 September C)false
- 4is observed every year on _______ A) 1 September B) 7 September C) 9 September D) 10 Septembertrue
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उत्तर : 4. "is observed every year on _______
A) 1 September
B) 7 September
C) 9 September
D) 10 September"
व्याख्या :
Answer: D) 10 September Explanation: World Suicide Prevention Day (WSPD) is an awareness day celebrated on 10 September every year, keeping in mind the end goal to give overall commitment and action to anticipate suicides, with various activities around the world since 2003.