प्रश्न और उत्तर का अभ्यास करें
8प्र: 10 men and 15 women together can complete a work in 6 days. It takes 100 days for one man alone to complete the same work. How many days will be required for one woman alone to complete the same work? 6760 05b5cc68be4d2b4197774c385
5b5cc68be4d2b4197774c385- 1215 daysfalse
- 2225 daystrue
- 3235 daysfalse
- 4240 daysfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "225 days"
व्याख्या :
Answer: B) 225 days Explanation: Given that (10M + 15W) x 6 days = 1M x 100 days => 60M + 90W = 100M => 40M = 90W => 4M = 9W. From the given data, 1M can do the work in 100 days => 4M can do the same work in 100/4= 25 days. => 9W can do the same work in 25 days. => 1W can do the same work in 25 x 9 = 225 days. Hence, 1 woman can do the same work in 225 days.
प्र: Select the correct passive form of the given sentence.
Do not buy medicines without the doctor's prescription.
6759 05d7f48adb4835d15d81f53a3
5d7f48adb4835d15d81f53a3Do not buy medicines without the doctor's prescription.
- 1Medicines should not be bought without the doctor's prescription.true
- 2Medicines need not be bought without the doctor's prescriptionfalse
- 3Medicines might not be bought without the doctor's prescriptionfalse
- 4Medicines could not be bought without the doctor's prescriptionfalse
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उत्तर : 1. "Medicines should not be bought without the doctor's prescription."
प्र: चार्ल्स बैबेज द्वारा डिज़ाइन किया गया पहला मैकेनिकल कंप्यूटर कहा जाता था
6753 05b5cc6bce4d2b4197774d89c
5b5cc6bce4d2b4197774d89c- 1Super Computerfalse
- 2Abscusfalse
- 3Calculatorfalse
- 4Analytical Enginetrue
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उत्तर : 4. "Analytical Engine"
व्याख्या :
Answer: D) Analytical Engine Explanation: Computer was invented by Charles Babbage. The First Mechanical Computer Designed by Charles Babbage, a British mathematician was called as Analytical Engine which resembles today's modern machines between 1833 and 1871.
प्र:Direction: In the question a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expressed the same sentence in Passive/Active Voice and mark your answer in the Answer Sheet.
He handed her a chair.
6750 05ddb664acf217052a90d5af3
5ddb664acf217052a90d5af3- 1She was handed a chair by him.true
- 2He handed a chair to her.false
- 3He will hand a chair to her.false
- 4A chair will be handed to her by him.false
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 1. "She was handed a chair by him. "
प्र: स्टेथोस्कोप : धड़कन :: ? : तापमान
6746 05f0ff2e54e2c7631e4390dee
5f0ff2e54e2c7631e4390dee- 1पैमानाfalse
- 2तापमापीtrue
- 3ऊष्माfalse
- 4पाराfalse
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उत्तर : 2. "तापमापी "
प्र:In these questions read each sentence to find out whether there is any error in it. If there is no error, the answer is (D).
It is hightime (A) / we renovate (B) / our old house. (C) No error. (D)
6744 05ddcafd839b75a0aaa562729
5ddcafd839b75a0aaa562729- 1Btrue
- 2Afalse
- 3Cfalse
- 4Dfalse
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उत्तर : 1. "B"
प्र: It takes five minutes to pass a rumour from one person to two other persons. The tree of rumour continues. Find how many minutes does it take spread the rumour to 729 persons ? 6722 05b5cc715e4d2b4197774f44a
5b5cc715e4d2b4197774f44a- 145 minfalse
- 225 minfalse
- 330 mintrue
- 436 minfalse
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उत्तर : 3. "30 min"
व्याख्या :
Answer: C) 30 min Explanation: After 5 mins ..... 3 persons will get rumourAfter 10 mins .... 3x2 + 3 = 9 = 32 persons will get after 15 =5x3 min ......9x2 + 9 =27 = 33 persons will get news...after 5x6 mins ... 36 = 729 persons will get news. Therefore, time taken to spread the rumour to 729 persons is 30 minutes.
प्र: एक गाँव की जनसंख्या 9600 थी। एक वर्ष में पुरूषों की जनसंख्या में 8 % और महिलाओं की जनंसख्या में 5 % की वृद्धि हुई तो जनसंख्या 10,272 हो जाती है तो बताइये वृद्धि से पहले गाँव में पुरुषों की संख्या कितनी थी?
6712 05f5af5624d383e58c6b6bbe9
5f5af5624d383e58c6b6bbe9- 14200false
- 24410false
- 36400true
- 46048false
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