IIT JEE Practice Question and Answer
8Q: If HAT is coded as 'jcv' then what will GUN be coded as? 6463 05b5cc6bde4d2b4197774d915
5b5cc6bde4d2b4197774d915- 1iwptrue
- 2IKMfalse
- 3kipfalse
- 4Klpfalse
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Answer : 1. "iwp"
Explanation :
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
Q: What bet can never be won? 6427 05b5cc61ee4d2b4197774b769
5b5cc61ee4d2b4197774b769- Show Answer
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Answer :
Explanation :
ALPHABET is the bet can never be won.
Q: 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 ? 6401 05b5cc715e4d2b4197774f44a
5b5cc715e4d2b4197774f44a- 145 minfalse
- 225 minfalse
- 330 mintrue
- 436 minfalse
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Answer : 3. "30 min"
Explanation :
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.
Q: 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? 6387 05b5cc7bbe4d2b419777509d7
5b5cc7bbe4d2b419777509d7- 14%true
- 25%false
- 36%false
- 48%false
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Answer : 1. "4%"
Explanation :
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%
Q: 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 ? 6380 05b5cc731e4d2b4197774f7d8
5b5cc731e4d2b4197774f7d8- 11009true
- 2991false
- 32000false
- 41000false
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Answer : 1. "1009"
Explanation :
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.
Q: What has a spine but no bones? 6365 05b5cc672e4d2b4197774c0be
5b5cc672e4d2b4197774c0be- 1Mirrorfalse
- 2Booktrue
- 3Tablefalse
- 4None of the abovefalse
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Answer : 2. "Book"
Explanation :
Answer: B) Book Explanation: A book has a spine to hold all the pages, but it has no bones.
Q: 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 ? 6349 05b5cc6fee4d2b4197774f11b
5b5cc6fee4d2b4197774f11b- 1Northtrue
- 2North - Eastfalse
- 3Eastfalse
- 4Westfalse
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Answer : 1. "North"
Explanation :
Answer: A) North Explanation: So he is facing west his left hand will be in North direction.
Q: 10 men and 15 women together can complete a work in 6 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work? 6345 05b5cc68be4d2b4197774c385
5b5cc68be4d2b4197774c385- 1215 daysfalse
- 2225 daystrue
- 3235 daysfalse
- 4240 daysfalse
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Answer : 2. "225 days"
Explanation :
Answer: B) 225 days Explanation: Given that (10M + 15W) x 6 days = 1M x 100 days => 60M + 90W = 100M => 40M = 90W => 4M = 9W. From the given data, 1M can do the work in 100 days => 4M can do the same work in 100/4= 25 days. => 9W can do the same work in 25 days. => 1W can do the same work in 25 x 9 = 225 days. Hence, 1 woman can do the same work in 225 days.