GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: A is brother of B, C is daughter of B, D is husband of B, E is daughter of A, What is the relationship between C and D ? 1663 05b5cc6c5e4d2b4197774dd9b
5b5cc6c5e4d2b4197774dd9b- 1Mother & Sonfalse
- 2Father & Daughtertrue
- 3Mother & Daughterfalse
- 4Father & Sonfalse
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उत्तर : 2. "Father & Daughter"
व्याख्या :
Answer: B) Father & Daughter Explanation:
प्र: At what rate percent on simple interest will Rs.415 amount to Rs.514 in 4 years ? 1663 05b5cc6d6e4d2b4197774e656
5b5cc6d6e4d2b4197774e656- 14.58 %false
- 25.96 %true
- 36.52 %false
- 44.98 %false
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उत्तर : 2. "5.96 %"
व्याख्या :
Answer: B) 5.96 % Explanation: Difference in amount = 514 - 415 = 99 99 = (415 x 4 x R)/100 R = 5.96%
प्र: Molar mass of HNO3? 1663 05b5cc698e4d2b4197774c63b
5b5cc698e4d2b4197774c63b- 163 g/moltrue
- 253 g/molfalse
- 348 g/molfalse
- 452 g/molfalse
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उत्तर : 1. "63 g/mol"
व्याख्या :
Answer: A) 63 g/mol Explanation: Calculation of molar mass of HNO3: Atomic masses of H, N, O are 1, 14, 16 respectively Now the molar mass of HNO3 is HNO3 = 1X1 + 1X14 + 3X16 = 1 + 14 + 48 = 63 g/mol or amu.
प्र: 6 divided by 2(1 + 2) = 1662 05b5cc65ee4d2b4197774be4f
5b5cc65ee4d2b4197774be4f- 11false
- 20false
- 39true
- 4Can't be determinedfalse
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उत्तर : 3. "9"
व्याख्या :
Answer: C) 9 Explanation: The given expression can be simplified as 6 ÷ 2 (1 + 2) The expression can be simplified further by the order of operations, using BODMAS rule. First evaluate Parentheses/Brackets, then evaluate Exponents/Orders, then evaluate Multiplication-Division, and finally evaluate Addition-Subtraction. Now, the expression becomes 6 ÷ 2 (3) According to the order of operations, division and multiplication have the same precedence, so the correct order is to evaluate from left to right. First take 6 and divide it by 2, and then multiply by 3. 6 ÷ 2 × 3 = 3 × 3 = 9 But not 6÷2×3 = 6 ÷ 6 = 1 Hence, 6 ÷ 2 (1 + 2) = 9.
प्र: What is the capital of Bhutan ? 1661 05b5cc6c9e4d2b4197774dfa1
5b5cc6c9e4d2b4197774dfa1- 1Dhakafalse
- 2Thimphutrue
- 3Tripolifalse
- 4Tokyofalse
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उत्तर : 2. "Thimphu"
व्याख्या :
Answer: B) Thimphu Explanation:
प्र: On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is ? 1661 05b5cc6dfe4d2b4197774eac6
5b5cc6dfe4d2b4197774eac6- 1476190476false
- 248617false
- 347619true
- 44587962false
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उत्तर : 3. "47619"
व्याख्या :
Answer: C) 47619 Explanation: By hit and trail, we find that 47619 x 7 = 333333. 7) 333333 (47619 333333---------------- 0 And 476190476 x 7 = 3333333333 but smallest number is 47619.
प्र: Every year before the festive season, a brand store increases the price of the product by 42% and then introduce two successive discount of 10% and 11% respectively. What is percentage loss and percentage gain ? 1660 05b5cc745e4d2b4197774f9f9
5b5cc745e4d2b4197774f9f9- 13.25% lossfalse
- 213.742% lossfalse
- 33.25% gainfalse
- 413.742% gaintrue
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उत्तर : 4. "13.742% gain"
व्याख्या :
Answer: D) 13.742% gain Explanation: Let CP = 100,42 % increase => SP = 14210 % discount in SP => ((142 x 10)/100) = 14.2So 1st SP = (142 - 14.2) = 127.8, again 12 % discount in 1st SP ((127.8 x 11)/100) = 14.0582nd SP = (127.8 - 14.058) = 113.742, So finally CP = 100, SP = 113.742, => gain = 13.742%.
प्र: Two candidates fought in a municipality election. One of them got 54% of the total votes pooled and won by 1080 votes. What was the total number of votes polled ? 1660 05b5cc74fe4d2b4197774fb2b
5b5cc74fe4d2b4197774fb2b- 112000false
- 213500true
- 315400false
- 411000false
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उत्तर : 2. "13500"
व्याख्या :
Answer: B) 13500 Explanation: Given in municipality election 54% votes have won by 1080 Let the total number of votes be x. 54x100 - 46x100 = 1080 8x = 108000 x = 13,500 Therefore, total number of votes = 13,500.

