Bank Exams प्रश्न और उत्तर का अभ्यास करें
8प्र: A number is increased by 20% and then decreased by 20%, the final value of the number is ? 2403 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%.
प्र: Which statement best describes electrons? 2403 05b5cc6abe4d2b4197774cfad
5b5cc6abe4d2b4197774cfad- 1Electrons orbit around the nucleustrue
- 2Electrons are composed of protons and neutronsfalse
- 3Electrons reside in the nucleusfalse
- 4Electrons have a positive chargefalse
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उत्तर : 1. "Electrons orbit around the nucleus"
व्याख्या :
Answer: A) Electrons orbit around the nucleus Explanation: Electrons orbit around the nucleus is correct about them.
प्र: In a street, there are certain number of houses. People in that street are decided to paint their houses with certain colours. If four houses are painted with each colour, then one house will be left without any colour. If five houses are painted with each colour, then one colour will remain. Find the number of houses in that street ? 2402 05b5cc718e4d2b4197774f4a9
5b5cc718e4d2b4197774f4a9- 125true
- 26false
- 332false
- 47false
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उत्तर : 1. "25"
व्याख्या :
Answer: A) 25 Explanation: Let x be number of houses and y be colors. on the basis of question x = 4y+1x = 5(y-1)on solving these 2 equations x = 25
प्र: How many Teaspoons in a Tablespoon? 2402 15b5cc6b2e4d2b4197774d35a
5b5cc6b2e4d2b4197774d35a- 14false
- 25false
- 32false
- 43true
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उत्तर : 4. "3"
व्याख्या :
Answer: D) 3 Explanation: Tablespoon > Teaspoon In US & UK, 1 Tablespoon = 3 Teaspoons.
प्र: Water is a compound because it? 2402 05b5cc698e4d2b4197774c627
5b5cc698e4d2b4197774c627- 1it contains two different elements joined by chemical bondtrue
- 2it contains hydrogen & oxygenfalse
- 3it exists as solid, liquid or gasfalse
- 4it cannot be split up into simpler substances by chemicals meansfalse
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उत्तर : 1. "it contains two different elements joined by chemical bond"
व्याख्या :
Answer: A) it contains two different elements joined by chemical bond Explanation: We know that All compounds are molecules, but not all molecules are compounds. Water is a molecule because it is made from atoms that have been chemically combined. It is also a compound because the atoms that make water are not all the same - some are oxygen and some are hydrogen. Hence, Water is a molecule and a compound.
प्र: General Knowledge Challenge : 2401 05b5cc6c6e4d2b4197774de45
5b5cc6c6e4d2b4197774de45- 11false
- 22false
- 33true
- 44false
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उत्तर : 3. "3"
व्याख्या :
Answer: C) 3 Explanation:
प्र: What animal has the highest blood pressure? 2400 05b5cc66de4d2b4197774bfde
5b5cc66de4d2b4197774bfde- 1Elephantfalse
- 2Giraffetrue
- 3Lionfalse
- 4Rabbitfalse
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उत्तर : 2. "Giraffe"
व्याख्या :
Answer: B) Giraffe Explanation: Giraffe has the highest blood pressure among animals. This is due to the fact that there is a large pressure drop (~100 mmhg) as the blood is transported from the heart, up the neck, to the brain. This is about twice the normal blood pressure of humans (120/80 mmhg).
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उत्तर :
व्याख्या :
12 N in a C means 12 Numbers in a Clock.