IIT JEE Practice Question and Answer
8Q: What will come in place of the question mark (?) in the following number series? 312 231 295 ? 282 257 1881 05b5cc6bfe4d2b4197774da33
5b5cc6bfe4d2b4197774da33- 1210false
- 225false
- 3246true
- 4279false
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Answer : 3. "246"
Explanation :
Answer: C) 246 Explanation: The series follows a pattern that, -92, +82, -72, +62, -52
Q: Select the odd term out of the following? 5252 15b5cc6bfe4d2b4197774da2e
5b5cc6bfe4d2b4197774da2e- 1Internettrue
- 2Macintosh OSXfalse
- 3Linux Mintfalse
- 4Windows 8.1false
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Answer : 1. "Internet"
Explanation :
Answer: A) Internet Explanation: Internet is not an operating system.
Q: A motorboat can go 10 miles downstream on a river in 20 min. It takes 30 min for this boat to go back at the same 10 miles. Find the speed of the current ? 2243 05b5cc6bfe4d2b4197774da29
5b5cc6bfe4d2b4197774da29- 18 m/hfalse
- 25 m/htrue
- 37 m/hfalse
- 46 m/hfalse
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Answer : 2. "5 m/h"
Explanation :
Answer: B) 5 m/h Explanation: As the distance travelled is constant, the time taken is inversely proportional to speed. Let 'u' be the speed of the current and 'v' be the speed of the boat. Speed of the boat downstream = v + u & upstream = v - u => v+u/v-u = 30/20 => v/u = 5 => v = 5u => v + u = 6u = 10/20/60 miles/hr => 6u = 30 m/h => u = 5 m/h
Q: 'The Race of my Life' the Autobiography has been co-authored by Milkha Singh's daughter, whose name is ____ ? 1728 05b5cc6bfe4d2b4197774da1f
5b5cc6bfe4d2b4197774da1f- 1Sonia Sanwalkatrue
- 2Mankhia Singhfalse
- 3Sanjitia Sardarfalse
- 4Poonam Dillofalse
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Answer : 1. "Sonia Sanwalka"
Explanation :
Answer: A) Sonia Sanwalka Explanation:
Q: What is the ratio of 18 minutes to one hour ? 2470 05b5cc6bfe4d2b4197774da24
5b5cc6bfe4d2b4197774da24- 11/5false
- 23/4false
- 31/7false
- 43/10true
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Answer : 4. "3/10"
Explanation :
Answer: D) 3/10 Explanation: One hour = 60 min 18/60 = 3/10
Q: The oldest type of energy known to man is _____? 3687 05b5cc6bfe4d2b4197774da1a
5b5cc6bfe4d2b4197774da1a- 1Geothermal Energytrue
- 2Solar Powerfalse
- 3Wind Powerfalse
- 4Tidal Powerfalse
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Answer : 1. "Geothermal Energy"
Explanation :
Answer: A) Geothermal Energy Explanation: Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy has been used for thousands of years in some countries for cooking and heating. It is simply power derived from the Earth's internal heat.
Q: Crack the Logical Password of the Mobile ? 2545 05b5cc6bfe4d2b4197774da19
5b5cc6bfe4d2b4197774da19- Show AnswerHide Answer
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Answer :
Explanation :
65292 1st digit is 3 x 2 = 6 3rd digit is 5-3 = 2 4th digit is 5+4 = 9 6+5 = 2+9 = 9+2 = 11
Q: Which Bank has made online transactions through RTGS and NEFT free of cost from November 1? 1229 05b5cc6bfe4d2b4197774da14
5b5cc6bfe4d2b4197774da14- 1HDFC Banktrue
- 2Karur Vysya Bankfalse
- 3ICICI Bankfalse
- 4SBI Bankfalse
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Answer : 1. "HDFC Bank"
Explanation :
Answer: A) HDFC Bank Explanation: Private sector lender HDFC Bank has made online fund transfer through RTGS (Real Time Gross Settlement) and NEFT (National Electronic Funds Transfer) free with effect from November 1, with an aim to promote digital economy. According to the revised charges, customers of savings and salary accounts of HDFC Bank will not have to pay any charge for transferring funds online using its RTGS and NEFT facilities.