प्रश्न और उत्तर का अभ्यास करें
8प्र: Srinivas bought 10 cycles for Rs. 1,750 each. He sold 4 cycles for Rs 8,400, 3 for Rs 1900 each . At what price should he sell the remaining cycles so as to earn an average profit of Rs 320 per cycle ? 2769 05b5cc718e4d2b4197774f4c7
5b5cc718e4d2b4197774f4c7- 1Rs. 1580false
- 2Rs. 2200true
- 3Rs. 1785false
- 4Rs. 1950false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 2. "Rs. 2200"
व्याख्या :
Answer: B) Rs. 2200 Explanation: He sold 4 cycles for Rs. 8400[It means each cycle price is Rs. 2100]And again he sold 3 cycles for Rs. 1900 eachIf he want to gain avg profit on each cycle is Rs. 320 per cycle.So profit for 10 cycles is @ Rs.320 is,10 x 320 = Rs. 3200He already got Rs. 1850 profit by selling 7 cycles.Now, remaining amount is 3200 - 1850 = 1350So from remaining 3 cycles we want to get Rs. 1350 profit ,1350/3 = 450so he must sell remaining 3 cycles at Rs. 2200 each one.
प्र: उस विकल्प का चयन करें जो तीसरी संख्या से ठीक उसी प्रकार संबंधित है जिस दूसरी संख्या पहली संख्या से संबंधित है और छठी संख्या पांचवीं संख्या से संबंधित है।
25 : 264 :: 31 : ? :: 49 : 456
2769 064899a66b50f5316a45d9fa8
64899a66b50f5316a45d9fa825 : 264 :: 31 : ? :: 49 : 456
- 1312true
- 2314false
- 3297false
- 4961false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
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उत्तर : 1. "312"
प्र: Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?
(1) K2O 2768 05b5cc783e4d2b41977750226
5b5cc783e4d2b41977750226- 1Option 1false
- 2Option 2true
- 3Option 3false
- 4Option 4false
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "Option 2"
व्याख्या :
Answer: B) Option 2
Explanation: While moving from left to right in periodic table basic character of oxide of elements will decrease.
∴→Increasing basic strengthAl2O3
प्र: How long have i been alive? 2768 05b5cc6a5e4d2b4197774ccaf
5b5cc6a5e4d2b4197774ccaf- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर :
व्याख्या :
This is a different way of asking your age. It can be how long you have been living in days weeks months and years since your birth date.
प्र: सिस्मोग्राफी : भूकंप :: टेसियोमीटर : ?
2768 05f1ab5448ae6514e222d38ac
5f1ab5448ae6514e222d38ac- 1भूस्खलनfalse
- 2खींचनाtrue
- 3ज्वालामुखीfalse
- 4प्रतिरोधकfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
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उत्तर : 2. "खींचना "
प्र: Among the following the maximum covalent character is shown by the compound (1)MgCl2 (2)FeCl2 (3)SnCl2 (4) AlCl3 2767 05b5cc783e4d2b41977750230
5b5cc783e4d2b41977750230- 1Option 1false
- 2Option 2false
- 3Option 3false
- 4Option 4true
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 4. "Option 4"
व्याख्या :
Answer: D) Option 4 Explanation: According to Fajans rule, cation with greater charge and smaller size favours covalency.
प्र: EFT का पूरा रूप क्या है?
2767 05e785e94bd40023a1fd3d340
5e785e94bd40023a1fd3d340- 1Electronic Funds Transfertrue
- 2Efficient Funds Transferfalse
- 3Effective Funds Transferfalse
- 4Electronic Foreign Transferfalse
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "Electronic Funds Transfer"
प्र: A man can row against the current three fourth of a kilometer in 15 min and returns same distance in 10 min, then ratio of his speed to that of current? 2767 05b5cc6a8e4d2b4197774ce95
5b5cc6a8e4d2b4197774ce95- 15:1true
- 23:1false
- 34:1false
- 42:1false
- उत्तर देखेंउत्तर छिपाएं
- Workspace
- SingleChoice
उत्तर : 1. "5:1"
व्याख्या :
Answer: A) 5:1 Explanation: Let the speed of the man in still water = p kmph Speed of the current = s kmph Now, according to the questions (p + s) x 10 = (p - s) x 15 2p + 2s = 3p - 3s => p : s = 5 : 1 Hence, ratio of his speed to that of current = 5:1.