IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: The school principal has received complaints from parents about bullying in the school yard during recess. He wants to investigate and end this situation as soon as possible, so he has asked the recess aides to watch closely. Which situation should the recess aides report to the principal ? 44418 05b5cc75ce4d2b4197774fc61
5b5cc75ce4d2b4197774fc61- 1A boy is sitting glumly on a bench reading a book and not interacting with his peers.false
- 2Two boys are playing a one-on-one game of basketball and are arguing over the last basket scored.false
- 3Three boys are huddled over a handheld video game, which isn’t supposed to be on school grounds.false
- 4Four girls are surrounding another girl and seem to have possession of her backpack.true
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उत्तर : 4. "Four girls are surrounding another girl and seem to have possession of her backpack."
व्याख्या :
Answer: D) Four girls are surrounding another girl and seem to have possession of her backpack. Explanation: Seeing four girls surrounding another girl, while in possession of her backpack, is the most suspicious of the incidents described.
प्र: Choose the antonym of the word given from the following options ? MUNDANE 2430 05b5cc75ce4d2b4197774fc52
5b5cc75ce4d2b4197774fc52- 1Extraordinarytrue
- 2Regularfalse
- 3Visionaryfalse
- 4Routinefalse
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उत्तर : 1. "Extraordinary"
व्याख्या :
Answer: A) Extraordinary Explanation:
प्र: 40% of 265 + 35% of 180 = 50% of ? 2106 05b5cc75ce4d2b4197774fc57
5b5cc75ce4d2b4197774fc57- 1383false
- 2338true
- 384.5false
- 4253.5false
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उत्तर : 2. "338"
व्याख्या :
Answer: B) 338 Explanation: We know that 40% = 25 40% of 265 + 35% of 180 = 50% ? 25 x 265 + 35% of 180 = 50% ? We know that (35% of 180 = 180% of 35) & 180% = 95 25 x 265 + 95 x 35 = 50% ? 106 + 63 = 50% ? ?= 2 x 169 = 338.
प्र: A batsman scored 180 runs which included 11 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets ? 1466 05b5cc75ce4d2b4197774fc4d
5b5cc75ce4d2b4197774fc4d- 162.45%false
- 251.42%false
- 348.88%true
- 447.32%false
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उत्तर : 3. "48.88%"
व्याख्या :
Answer: C) 48.88% Explanation: Number of runs made by running = 180 - (11 x 4 + 8 x 6)= 180 - (92)= 88Now, we need to calculate 88 is what percent of 180.⇒88180×100 = 48.888%.
प्र: If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ? 1817 05b5cc75ce4d2b4197774fc48
5b5cc75ce4d2b4197774fc48- 124%false
- 229%false
- 334%false
- 425%true
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उत्तर : 4. "25%"
व्याख्या :
Answer: D) 25% Explanation: Here, k = 7 and l = 28Therefore, first number = klx100 % of second number = 7/28 x 100% of second number = 25% of second number.
प्र: The price of pulses has increased by 25%. The percentage of reduction that a family should effect in the use of pulses so as not to increase the expenditure on this account is ? 1412 05b5cc75ce4d2b4197774fc3e
5b5cc75ce4d2b4197774fc3e- 116%false
- 220%true
- 384%false
- 472%false
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उत्तर : 2. "20%"
व्याख्या :
Answer: B) 20% Explanation: Reduction in consumption= P100+P X 100%= 25100+25 X 100%= 20%
प्र: Two numbers are respectively 40% and 30% more than a third number. The second number expressed in terms of percentage of the first is ? 1510 05b5cc75ce4d2b4197774fc43
5b5cc75ce4d2b4197774fc43- 192.8%true
- 284.23%false
- 387.14%false
- 494.1%false
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उत्तर : 1. "92.8%"
व्याख्या :
Answer: A) 92.8% Explanation: Here, x = 40 and y = 30;Therefore second number= [[100+y100+x] x 100 ]% of first number= [[100+y100+x] x 100 ]% of first numberSecond number = 92.8% of the first number.
प्र: A number is increased by 20% and then decreased by 20%, the final value of the number is ? 1583 05b5cc75ce4d2b4197774fc39
5b5cc75ce4d2b4197774fc39- 1increase by 2%false
- 2decrease by 3%false
- 3decrease by 4%true
- 4increase by 5%false
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उत्तर : 3. "decrease by 4%"
व्याख्या :
Answer: C) decrease by 4% Explanation: Here, x = 20 and y = - 20Therefore, the net % change in value=x + y + xy100 %= 20 + -20 + 20 × -20100% or - 4% Since the sign is negative, there is a decrease in value by 4%.