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नवीनतमलोकप्रियमूल्यांकनपेज देखें 100 of 103कुल सवाल 824 जॉइन Examsbook

प्र: Everyone has it and no one can lose it. What is it? 1391 0

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    Face
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    Teeth
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    Hair
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  • 4
    Shadow
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उत्तर : 4. "Shadow"
व्याख्या :

Answer: D) Shadow Explanation:

प्र: A can do a work in 9 days, B can do a work in 7 days, C can do a work in 5 days. A works on the first day, B works on the second day and C on the third day respectively that is they work on alternate days. When will they finish the work ? 1390 0

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    [7 + (215/345)] days
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  • 2
    [6 + (11/215)] days
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  • 3
    [6 + (261/315)] days
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  • 4
    [5 + (112/351)] days
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उत्तर : 3. "[6 + (261/315)] days"
व्याख्या :

Answer: C) [6 + (261/315)] days Explanation: After day 1, A finishes 1/9 of the work. After day 2, B finishes 1/7 more of the total work. (1/9) + (1/7) is finished. After day 3, C finishes 1/5 more of total work. Total finished is 143/315. So, after day 6, total work finished is 286/315.   Now remaining work =  29 /315   On day 7, A will work again    Work will be completed on day 7 when A is working. He must finish 29/315 of total remaining work.   Since he takes 9 days to finish the total task, he will need 261/315 of the day.    Total days required is 6 + (261/315) days.

प्र: What tastes better than it smells? 1382 0

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उत्तर :
व्याख्या :

Tongue. Yes tongue tastes better than it smells as it can't smell.

प्र: Find which of the two conclusions I and II given below is/are definitely true from the the given statements.   Statements: I > W > T > N, I = F = G = C   Conclusions:    I. W > I                                           II. C > N 1382 0

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    Only Conclusion I is true
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    Only Conclusion II is true
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    Both conclusions I & II are true
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    Neither conclusion I nor II is true
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उत्तर : 2. "Only Conclusion II is true"
व्याख्या :

Answer: B) Only Conclusion II is true Explanation: From the given Statements :   1. I > W > T > N  2. F = G = C  Conclusions are :   I. W > I (False)  II. C > N (True)

प्र: You will always find me in the past. I can be created in the present, But the future can never taint me. What am I? 1373 0

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उत्तर :
व्याख्या :

I am History.   Yes, history refers to all the past, but we can create history in the presentand it cannot be polluted in the future.

प्र: When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ? 1368 0

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    4
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    6
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    3
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    1
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उत्तर : 3. "3"
व्याख्या :

Answer: C) 3 Explanation: Number = quotient x divisor + remainder;so, herenumber = 138 k + 26=> (23 x 6k) + (23+3)=> 23(6k+1)+3so, remainder is 3.

प्र: Statement : The byproducts obtained from animals such as hairs, skins, horns, etc. contain at least 45 per cent food protein. Indian scientists have developed methods to segregate 50 per cent of this protein. They have used an enzyme developed in Russia for destruction of soya-proteins. Conclusions: A. Indian scientists cannot develop enzymes. B. If a suitable method involving less cost is developed then many more food protein would be obtained. 1368 0

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    Only A follows
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    Only B follows
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    Neither A nor B follows
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    Both A & B follows
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उत्तर : 3. "Neither A nor B follows"
व्याख्या :

Answer: C) Neither A nor B follows Explanation: There is no indication that Indian scientists are incapable of developing enzymes. There could be any number of reasons why Indian scientists used Russian enzymes. So conclusion A does not follow. In addition, cost is not discussed in the passage at all. There is no mention of a correlation between cost and extraction of proteins. Thus, conclusion B does not follow either.

प्र: Two trains running in opposite directions cross a pole placed on the platform in 47 seconds and 31 seconds respectively. If they cross each other in 33 seconds, what is the ratio of their speeds? 1361 0

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    1:7
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    7:1
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    2:3
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    3:2
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उत्तर : 1. "1:7"
व्याख्या :

Answer: A) 1:7 Explanation: Let the speed of the trains be x and y respectively length of train1 = 47xlength of train2 = 31yRelative speed= x + yTime taken to cross each other = 33 s=> 47x+31yx+y= 33=> (47x + 31 y) = 33(x + y)=> 14x = 2y=> x/y = 2/14 = 1/7  = 1:7

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