IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: At a certain rate of interest the compound interest of 3 years and simple interest of 5 years for certain sum of money is respectively Rs. 1513.2 and Rs. 2400. Find the common rate of interest per annum ? 2951 05b5cc6cde4d2b4197774e1cc
5b5cc6cde4d2b4197774e1cc- 15%true
- 26%false
- 34%false
- 43%false
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उत्तर : 1. "5%"
व्याख्या :
Answer: A) 5% Explanation: Given compound interest for 3 years = Rs. 1513.2 and simple interest for 5 years = Rs. 2400 Now, we know that C.I = P1+R100n - 1 => 1513.2 = P1+R1003 - 1 ...........(A) And S.I = PTR/100 => 2400 = P5R/100 ..................(B) By solving (A) & (B), we get R = 5%.
प्र: What about Earth allows it to maintain bodies of water? 2948 05b5cc699e4d2b4197774c6f6
5b5cc699e4d2b4197774c6f6- 1mountainsfalse
- 2tidesfalse
- 3moderate tempaturestrue
- 4comet crashesfalse
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उत्तर : 3. "moderate tempatures"
व्याख्या :
Answer: C) moderate tempatures Explanation: The moderate temperatures allow Earth to maintain bodies of water into its normal state. Changes in the bodies of water in terms of volume and structure would change due to the change in temperature.
प्र: Choose the Antonym of the given word from the following options 'Jettison' 2947 05b5cc761e4d2b4197774fd02
5b5cc761e4d2b4197774fd02- 1Salvagetrue
- 2Submergefalse
- 3Repentfalse
- 4Descendfalse
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उत्तर : 1. "Salvage"
व्याख्या :
Answer: A) Salvage Explanation: 'Jettison' means to discard and 'salvage' means to rescue something discarded. Hence, 'salvage' is the word which is farthest in meaning to the given word 'Jettison'.
प्र: Which of these investments may pay dividends? 2947 05b5cc69fe4d2b4197774ca28
5b5cc69fe4d2b4197774ca28- 1Savings accountfalse
- 2Stockstrue
- 3Bondsfalse
- 4Certificates of depositfalse
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उत्तर : 2. "Stocks"
व्याख्या :
Answer: B) Stocks Explanation: Stock investment may pay the dividends. The amount of dividend will be depended on how many stocks you own and how much is that's company net income in that year For example : If you own 15 % of the company, and the company announced that they will pay Rs. 1,00,000 as dividend this year, you will get dividend payment of Rs. 15,000.
प्र: Train X crosses a stationary train Y in 60 seconds and a pole in 25 seconds with the same speed. The length of the train X is 300 m. What is the length of the stationary train Y ? 2945 05b5cc6d8e4d2b4197774e7c6
5b5cc6d8e4d2b4197774e7c6- 1360 mfalse
- 2420 mtrue
- 3460 mfalse
- 4320 mfalse
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उत्तर : 2. "420 m"
व्याख्या :
Answer: B) 420 m Explanation: Let the length of the stationary train Y be LY Given that length of train X, LX = 300 m Let the speed of Train X be V. Since the train X crosses train Y and a pole in 60 seconds and 25 seconds respectively. => 300/V = 25 ---> ( 1 ) (300 + LY) / V = 60 ---> ( 2 ) From (1) V = 300/25 = 12 m/sec. From (2) (300 + LY)/12 = 60 => 300 + LY = 60 (12) = 720 => LY = 720 - 300 = 420 m Length of the stationary train = 420 m
प्र: Running 3/4th of his usual rate, a man is 15min late. Find his usual time in hours ? 2945 05b5cc6d8e4d2b4197774e782
5b5cc6d8e4d2b4197774e782- 12/3 hrsfalse
- 23/4 hrstrue
- 31/3 hrsfalse
- 41/4 hrsfalse
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उत्तर : 2. "3/4 hrs"
व्याख्या :
Answer: B) 3/4 hrs Explanation: Walking at 3/4th of usual rate implies that time taken would be 4/3th of the usual time. In other words, the time taken is 1/3rd more than his usual time so 1/3rd of the usual time = 15minor usual time = 3 x 15 = 45min = 45/60 hrs = 3/4 hrs.
प्र: 11 letter Indian city is I am Hints :: 2,4,10 is a Unit of Length . Last 6 letters is a Fruit Name. 9,5,3 is a Soap Name. 1,8,3 is used by a Student 7,8,3 letters is a Bird Name. 6,7,5,3 is an organ in the Face. From the above given Hints Find that Indian City Name? 2941 05b5cc6b6e4d2b4197774d59d
5b5cc6b6e4d2b4197774d59d- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
PONDICHERRY is the Indian City with 11 Letters. Fruit Name : CHERRY Soap Name : RIN Bird Name : HEN Organ : CHIN Used by Student : PEN
प्र: A supplier supplies cartridges to a news paper publishing house. He earns a profit of 25% by selling cartridges for Rs. 1540. Find the cost price of the Cartridges ? 2940 05b5cc741e4d2b4197774f9a9
5b5cc741e4d2b4197774f9a9- 1Rs. 1100false
- 2Rs. 1793.4false
- 3Rs. 1440false
- 4Rs. 1232true
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उत्तर : 4. "Rs. 1232"
व्याख्या :
Answer: D) Rs. 1232 Explanation: Let Cost Price(C.P) = Pgain% = {(S.P-C.P)/C.P} x 10025 = {(1540-P)/P} x 10025/100 = (1540-P)/P=> P = 4(1540)-4P=> 5P = 4(1540)=> P = 1232So, Cost Price = Rs. 1232