IIT JEE Practice Question and Answer
8Q: If two is subtracted from each odd digit and three is added to each even digit in the number 94257636, how many digits will appear twice in the new number thus formed ? 2397 05b5cc6c7e4d2b4197774de87
5b5cc6c7e4d2b4197774de87- 10false
- 21false
- 32false
- 43true
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Answer : 4. "3"
Explanation :
Answer: D) 3 Explanation: Here 5, 7 & 9 are repeating after modulation.
Q: Which of the following is a microeconomic statement? 2394 05b5cc639e4d2b4197774ba58
5b5cc639e4d2b4197774ba58- 1The price of personal computers declined last year.true
- 2Unemployment was 6.8 percent of the labor force last year.false
- 3The real domestic output increased by 2.5 percent last year.false
- 4The general price level increased by 4 percent last year.false
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Answer : 1. "The price of personal computers declined last year."
Explanation :
Answer: A) The price of personal computers declined last year. Explanation:
Q: कौन सी इकाई अस्थायी रूप से डेटा रखती है? 2394 05b5cc64de4d2b4197774bcb2
5b5cc64de4d2b4197774bcb2- 1सैकेंडरी स्टोरेज यूनिटfalse
- 2आउटपुट यूनिटfalse
- 3प्राइमरी मेमोरी यूनिटtrue
- 4इनपुट यूनिटfalse
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Answer : 3. "प्राइमरी मेमोरी यूनिट"
Explanation :
Answer: C) प्राथमिक मेमोरी यूनिट स्पष्टीकरण: मेमोरी कंप्यूटर का वह भाग है जो ALU द्वारा संसाधित किए जाने से पहले और बाद में अस्थायी रूप से डेटा और निर्देश रखता है। मेमोरी को प्राइमरी स्टोरेज, प्राइमरी मेमोरी, मेन स्टोरेज, इंटरनल स्टोरेज और मेन मेमोरी के रूप में भी जाना जाता है। निर्माता अक्सर RAM शब्द का उपयोग करते हैं, जिसका अर्थ है रैंडम-एक्सेस मेमोरी।
Q: A retailer buys product from a shopkeeper at discount of 40% on the list price (marked price) and sells them to the customer at a discount of 25% on the list price.What is his profit percentage ? 2394 05b5cc7a5e4d2b4197775066f
5b5cc7a5e4d2b4197775066f- 110%false
- 215%false
- 320%false
- 425%true
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Answer : 4. "25%"
Explanation :
Answer: D) 25% Explanation: Let the list price be Rs.100. Therefore, the retailer is buying the products at Rs.60 and selling it to the customer at Rs.75, earning a profit of Rs.15. Therefore, his percentage is = 1560x100 = 25%
Q: An intelligent boy is doing a jigsaw with 275 pieces. Each day that he fits pieces together there are fewer pieces left, and it is reasonable to assume that he fits more pieces each day because the number left to sort out diminishes progressively. Hence he is able to fit an extra piece as each day goes by. On the first day he fits 20 pieces. How many days does it take for him to complete the puzzle ? 2393 05b5cc71ee4d2b4197774f59a
5b5cc71ee4d2b4197774f59a- 111 daystrue
- 215 daysfalse
- 313 daysfalse
- 416 daysfalse
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Answer : 1. "11 days"
Explanation :
Answer: A) 11 days Explanation: Let 'n' number of days it take to complete. we know that sum of n number= n/2[2a+(n-1)d]where a=20,d=1;n/2[2x20+(n-1)1]=275n[n+39]=550n2 + 39n - 550 = 0 n2+ 50n - 11n - 550 = 0(n-11) (n-50) = 0n-11 = 0;n = 11(Days).
Q: How many meaningful English words can be formed with the letters A, L, W using each letter only once in each word ? 2392 05b5cc6cbe4d2b4197774e0db
5b5cc6cbe4d2b4197774e0db- 11true
- 22false
- 33false
- 44false
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Answer : 1. "1"
Explanation :
Answer: A) 1 Explanation: Using the letters A, L, W only one meaningful English word can be formed i.e, LAW No other words can be formed.
Q: What is the term used in tennis when the score is 40-40? 2392 05b5cc67be4d2b4197774c20e
5b5cc67be4d2b4197774c20e- 1Acefalse
- 2Ledfalse
- 3Deucetrue
- 4Tiefalse
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Answer : 3. "Deuce"
Explanation :
Answer: C) Deuce Explanation: When both sides have won the same number of points then: when each side has won one, or two, points, the score is described as "15-all" and "30-all" (or "15-up" and "30-up"), respectively. However, if each player has won three points, the score is called as "deuce", not "40–all". From that point on in the game, whenever the score is tied, it is described as "deuce", regardless of how many points have been played.
Q: GNLF stands for 2388 05b5cc69ee4d2b4197774c990
5b5cc69ee4d2b4197774c990- 1Gorkha National Liberation Fronttrue
- 2Gross National Liberation Formfalse
- 3Both option A and Bfalse
- 4None of the abovefalse
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Answer : 1. "Gorkha National Liberation Front"
Explanation :
Answer: A) Gorkha National Liberation Front Explanation: GNLF stands for Gorkha National Liberation Front. Gorkha National Liberation Front (GNLF) is a political party in the Darjeeling District of West Bengal, India. It was formed in 1980 by Subhash Ghisingh with the objective of demanding a Gorkhaland state within India.

