GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's husband age is ? 3018 05b5cc720e4d2b4197774f613
5b5cc720e4d2b4197774f613- 145false
- 224false
- 342false
- 454true
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 4. "54"
व्याख्या :
Answer: D) 54 Explanation: By trial and error method from the given options, as 54 - 45 = (1/11) x (45+54) = 99/11 = 9 Hence this satisfies the given conditions. Then the woman's husband age is 54.
प्र: एक्सेल वर्कबुक किसका संग्रह है? 3018 15b5cc636e4d2b4197774b9f5
5b5cc636e4d2b4197774b9f5- 1चार्टfalse
- 2वर्कसीटfalse
- 3दोनो A & Bfalse
- 4इनमे से कोई भी नहींtrue
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उत्तर : 4. "इनमे से कोई भी नहीं"
व्याख्या :
Answer: C) दोनो A & B व्याख्या: एमएस एक्सेल वर्कबुक वर्कशीट और चार्ट दोनों का एक संग्रह है।
प्र: Sum of the ages of Rajesh, Suresh, Mahesh and Dinesh is 76 years. 7 years hence, their age ratio is 7:6:5:8. Find Mahesh’s present age ? 3016 05b5cc6c2e4d2b4197774dba5
5b5cc6c2e4d2b4197774dba5- 117 yearsfalse
- 213 yearstrue
- 314 yearsfalse
- 416 yearsfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "13 years"
व्याख्या :
Answer: B) 13 years Explanation: Given R + S + M + D = 76 => R+7 : S+7 : M+7 : D+7 = 7:6:5:8 => Let the ratio = x => M+7 = 5x => M = 5x-7 => R = 7x-7 => S = 6x-7 => D = 8x-7 => R + S + M + D = 76 => 7x-7 + 6x-7 + 5x-7 + 8x-7 = 76 => 26x - 28 = 76 => 26x = 104 => x = 4 => Mahesh's present age = 5x-7 = 20 - 7 = 13 years.
प्र: What will come in place of question mark(?) in the following number series ? 6859 5832 ? 4096 3375 3013 05b5cc6c0e4d2b4197774db1e
5b5cc6c0e4d2b4197774db1e- 14589false
- 24913true
- 35013false
- 45169false
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उत्तर : 2. "4913"
व्याख्या :
Answer: B) 4913 Explanation: The given series follows a pattern that, 19 x 19 x 19 = 6859 18 x 18 x 18 = 5832 17 x 17 x 17 = 4913 16 x 16 x 16 = 4096 15 x 15 x 15 = 3375 So, the missing number in the given series = 4913
प्र: What holds the sides of the DNA ladder together? 3008 05b5cc69ae4d2b4197774c78c
5b5cc69ae4d2b4197774c78c- 1Polar covalent bondsfalse
- 2Ionic bondsfalse
- 3Metallic bondsfalse
- 4Covalent bondstrue
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उत्तर : 4. "Covalent bonds"
व्याख्या :
Answer: D) Covalent bonds Explanation: Deoxyribose, which is a pentose, and a phosphate group are the two molecules together form the two sides of the DNA i.e, A sugar (deoxyribose) and a phosphate. DNA is a double-stranded molecule twisted into a helix (think of a spiral staircase). Each spiraling strand, comprised of a sugar-phosphate backbone and attached bases, is connected to a complementary strand by non-covalent hydrogen bonding between paired bases. The bases are adenine (A), thymine (T), cytosine (C) and guanine (G). A and T are connected by two hydrogen bonds. G and C are connected by three hydrogen bonds.
प्र: एक स्तंभ और एक पंक्ति का प्रतिच्छेदन 3000 05b5cc651e4d2b4197774bcdb
5b5cc651e4d2b4197774bcdb- 1सेलtrue
- 2मेन्यूfalse
- 3कीfalse
- 4फिल्डfalse
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उत्तर : 1. "सेल"
व्याख्या :
Answer: A) सेल स्पष्टीकरण: एक स्प्रेड शीट में एक कॉलम और एक पंक्ति के प्रतिच्छेदन को सेल या बोन कहा जाता है।
प्र: What is the probability of an impossible event? 2999 05b5cc69ee4d2b4197774c995
5b5cc69ee4d2b4197774c995- 10true
- 2-1false
- 30.1false
- 41false
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उत्तर : 1. "0"
व्याख्या :
Answer: A) 0 Explanation: The probability of an impossible event is 0. The event is known ahead of time to be not possible, therefore by definition in mathematics, the probability is defined to be 0 which means it can never happen. The probability of a certain event is 1.
प्र: Three men, four women and six children can complete a work in 9 days. A women does double the work a man does and a child does half the work a man does. How many women alone can complete this work in 9 days? 2991 05b5cc6b2e4d2b4197774d374
5b5cc6b2e4d2b4197774d374- 17true
- 28false
- 39false
- 46false
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उत्तर : 1. "7"
व्याख्या :
Answer: A) 7 Explanation: Given (3 Men + 4 Women + 6 Children) -----> 9 days But W = 2M and C = M/2 Now, convert Men and Children into Women by 3W2 + 4W + 6W4=> 32 + 4 + 32 = 7 Women Therefore, 7 women alone can complete this work in 9 days.

