Practice Question and Answer
8 Q: निम्नलिखित में से विषम शब्द खोजें:
3649 05d2830102919df5e2a25ea6c
5d2830102919df5e2a25ea6c- 1मईfalse
- 2जुलाईfalse
- 3अगस्तfalse
- 4सितंबरtrue
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Answer : 4. "सितंबर"
Explanation :
सितंबर 30 दिनों का महीना है लेकिन ये सभी 31 दिनों के हैं।
Q: A thief steals half the total number of loaves of bread plus 1/2 loaf from a bakery. A second thief steals half the remaining number of loaves plus 1/2 loaf and so on. After the 5th thief has stolen there are no more loaves left in the bakery. What was the total number of loaves did the bakery have at the beginning ? 3648 05b5cc70ee4d2b4197774f33c
5b5cc70ee4d2b4197774f33c- 121false
- 211false
- 317false
- 431true
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Answer : 4. "31"
Explanation :
Answer: D) 31 Explanation: Let y be the total number of loavesa be the remaining loaves after 1st thiefb be the remaining loaves after 2nd thiefand c, d..so on after 3 and 4 the = 0 be the remaining loaves after 5th thief a = y - (y/2 + 1/2)= y/2 - 1/2 b = a - (a/2 + 1/2)= a/2 - 1/2 c = b - (b/2 + 1/2)= b/2 - 1/2 d = c - (c/2 + 1/2)= c/2 - 1/2 e = d - (d/2 + 1/2)= d/2 - 1/2we know that, e = 0,thus by substitution, we getd = 1c = 3b = 7a = 15y = 31Therefore total number of bread loaves in bakery was 31.
Q: प्रथम 19 प्राकृतिक संख्याओं के वर्गों का औसत क्या है ।
3648 05f353ec5122f0b4ab91a3c34
5f353ec5122f0b4ab91a3c34- 1130true
- 2133.5false
- 3124false
- 4127.5false
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Answer : 1. "130 "
Q: दी गई आकृति में, कितनी लकड़ी की प्लेंटे है?
3646 05d7f789c67e6ea15ecb846c2
5d7f789c67e6ea15ecb846c2- 130false
- 247true
- 336false
- 428false
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Answer : 2. "47"
Q: कम्प्यूटर का आधारभूत ढांचा इनके द्वारा विकसित किया गया था ।
3646 05e90310ef681623fa56129a7
5e90310ef681623fa56129a7- 1जॉन वॉन न्यूमैनtrue
- 2चॉलर्स वैवेजfalse
- 3ब्लेज पॉस्कलfalse
- 4गोरडन मूरेfalse
- 5इनमें से कोई नहींfalse
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Answer : 1. "जॉन वॉन न्यूमैन "
Q: Ten years ago, Kumar was thrice as old as Sailesh was but 10 years hence, he will be only twice as old. Find Kumar’s present age ? 3643 05b5cc77fe4d2b419777501a6
5b5cc77fe4d2b419777501a6- 150 yearsfalse
- 270 yearstrue
- 360 yearsfalse
- 440 yearsfalse
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Answer : 2. "70 years"
Explanation :
Answer: B) 70 years Explanation: Let Kumar’s present age be "x" years and Sailesh’s present age be "y" years.Then, according to the first condition, x - 10 = 3(y - 10) => x - 3y = - 20 ........(1) Now, Kumar’s age after 10 years = (x + 10) years. Sailesh’s age after 10 years = (y + 10) years. (x + 10) = 2 (y + 10) => x - 2y = 10 ......(2) Solving (1) and (2), we get x = 70 and y = 30 Kumar’s present age = 70 years and Sailesh’s present age = 30 years.
Q: What is the name of the virus that fool a user into downloading and executing them by pretending to be useful applications ? 3643 25b5cc6d1e4d2b4197774e3fc
5b5cc6d1e4d2b4197774e3fc- 1Trojan horsestrue
- 2Keyloggerfalse
- 3Wormfalse
- 4File virusfalse
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Answer : 1. "Trojan horses"
Explanation :
Answer: A) Trojan horses Explanation:
Q: निम्नलिखित श्रंखला में गुम संख्याएँ ज्ञात कीजिए।
21, 26, 33, 42, 53,?
3641 05dc8fecff7c0852c4473fbdc
5dc8fecff7c0852c4473fbdc- 156false
- 263false
- 366true
- 469false
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