IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: If HAT is coded as 'jcv' then what will GUN be coded as? 6469 05b5cc6bde4d2b4197774d915
5b5cc6bde4d2b4197774d915- 1iwptrue
- 2IKMfalse
- 3kipfalse
- 4Klpfalse
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उत्तर : 1. "iwp"
व्याख्या :
Answer: A) iwp Explanation: Here HAT is coded as jcv => Leaving a letter in between i.e, after H leave i write j in small letters In the same way, A => c, T => v Similarly for GUN => iwp
प्र: What bet can never be won? 6441 05b5cc61ee4d2b4197774b769
5b5cc61ee4d2b4197774b769- उत्तर देखें
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उत्तर :
व्याख्या :
ALPHABET is the bet can never be won.
प्र: It takes five minutes to pass a rumour from one person to two other persons. The tree of rumour continues. Find how many minutes does it take spread the rumour to 729 persons ? 6419 05b5cc715e4d2b4197774f44a
5b5cc715e4d2b4197774f44a- 145 minfalse
- 225 minfalse
- 330 mintrue
- 436 minfalse
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उत्तर : 3. "30 min"
व्याख्या :
Answer: C) 30 min Explanation: After 5 mins ..... 3 persons will get rumourAfter 10 mins .... 3x2 + 3 = 9 = 32 persons will get after 15 =5x3 min ......9x2 + 9 =27 = 33 persons will get news...after 5x6 mins ... 36 = 729 persons will get news. Therefore, time taken to spread the rumour to 729 persons is 30 minutes.
प्र: A Shopkeeper sells two articles at Rs.1000 each, making a profit of 20% on the first article and a loss of 20% on the second article. Find the net Profit or loss that he makes? 6393 05b5cc7bbe4d2b419777509d7
5b5cc7bbe4d2b419777509d7- 14%true
- 25%false
- 36%false
- 48%false
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उत्तर : 1. "4%"
व्याख्या :
Answer: A) 4% Explanation: SP of first article = Rs.1000 Profit = 20% CP = SP x 100100+P% = Rs. 25003 SP of Second Article = Rs.1000 Loss = 20% CP = SP x 100100-L% = Rs. 1250 So, Total SP = Rs.2000; Total CP = Rs.6250/3 As the CP is more than SP, he makes a loss. Loss = CP - SP = (6250/3) - 2000 = Rs.(250/3) So, Loss Percent = Lossx100/CP = 4%
प्र: A number of cats got together and decided to kill between them 999919 rats. Every cat killed an equal number of rats. Each cat killed more rats than there were cats. How many rats do you think that each cat killed ? 6388 05b5cc731e4d2b4197774f7d8
5b5cc731e4d2b4197774f7d8- 11009true
- 2991false
- 32000false
- 41000false
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उत्तर : 1. "1009"
व्याख्या :
Answer: A) 1009 Explanation: Given total number of rats = 999919 999919 = 1000000 - 81 = 10002 - 92 = (1000+9)(1000-9) = 1009 x 991.Since there were more rats than there were cats, 991 cats killed 1009 rats each.
प्र: How many times can you subtract 10 from 100? 6376 05b5cc669e4d2b4197774bf5e
5b5cc669e4d2b4197774bf5e- 19 timesfalse
- 210 timesfalse
- 31 timetrue
- 40 timesfalse
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उत्तर : 3. "1 time"
व्याख्या :
Answer: C) 1 time Explanation: How many times can you subtract 10 from 100, for this if we go through logically, it is only 1 time. For the first time if we subtract 10 from 100, then there will no 100 to subtract from. Hence, it is only 1 time we can subtract 10 from 100.
प्र: What has a spine but no bones? 6374 05b5cc672e4d2b4197774c0be
5b5cc672e4d2b4197774c0be- 1Mirrorfalse
- 2Booktrue
- 3Tablefalse
- 4None of the abovefalse
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उत्तर : 2. "Book"
व्याख्या :
Answer: B) Book Explanation: A book has a spine to hold all the pages, but it has no bones.
प्र: Raman is performing yoga with his head down and legs up. His face is towards the west. In which direction, will his left hand be ? 6363 05b5cc6fee4d2b4197774f11b
5b5cc6fee4d2b4197774f11b- 1Northtrue
- 2North - Eastfalse
- 3Eastfalse
- 4Westfalse
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उत्तर : 1. "North"
व्याख्या :
Answer: A) North Explanation: So he is facing west his left hand will be in North direction.