Insta–DART (Daily Aptitude and Reasoning Test) 15 February 2021
Insta–DART (Daily Aptitude and Reasoning Test) 2020 - 21
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Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too. We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.
Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).
Wish you all the best ! 🙂
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Question 1 of 5
1. Question
A and B can complete a work in 8 days, working together. B alone can do it in 12 days. After working for 4 days, B left the work. How many days will A take to complete the remaining work?
Correct
Answer: a
(A+B)’s 1 day’s work = (1/8)
B’s 1 day’s work = (1/12)
∴A’s 1 day’s work = (1/8)-(1/12)=[(3-2)/24]=(1/24)
∴A can complete the work in 24 days.
Now, B’s 4 day’s work = (4/12) = 1/3)
Remaining work =1 – (1/3) = (2/3)
As, time taken by A to complete the work is 24 days
∴Time taken by A to do (2/3) of the work= (2/3)´ 24 = 16 days
Incorrect
Answer: a
(A+B)’s 1 day’s work = (1/8)
B’s 1 day’s work = (1/12)
∴A’s 1 day’s work = (1/8)-(1/12)=[(3-2)/24]=(1/24)
∴A can complete the work in 24 days.
Now, B’s 4 day’s work = (4/12) = 1/3)
Remaining work =1 – (1/3) = (2/3)
As, time taken by A to complete the work is 24 days
∴Time taken by A to do (2/3) of the work= (2/3)´ 24 = 16 days
Question 2 of 5
2. Question
10 men can make a wall in 8 days. How many men required to complete the same work in half day?
Correct
Answer: d
Given, M1 = 10
D1 = 8, M2 = ? and D2 = (1/2)
From M1D1 = M2D2
10 * 8 = M2*(1/2)
M2 = 10 * 8 * 2
∴M2 = 160
Incorrect
Answer: d
Given, M1 = 10
D1 = 8, M2 = ? and D2 = (1/2)
From M1D1 = M2D2
10 * 8 = M2*(1/2)
M2 = 10 * 8 * 2
∴M2 = 160
Question 3 of 5
3. Question
6 boys can complete a piece of work in 16 h. In how many hours will 8 boys complete the same work?
In a hostel, there are 120 students and food stock is for 45 days. If 30 new students join the hostel, in how many days will the complete stock be exhausted?
Correct
Answer: d
Let food stock will be exhausted in x days,
Given, M1 = 120,D1=45
M2 = 120 +30=150
And D2 = x
Then, using M1D1 = M2D2
120* 45 = 150 * x
∴x = [(120´45 )/150] = 36
Incorrect
Answer: d
Let food stock will be exhausted in x days,
Given, M1 = 120,D1=45
M2 = 120 +30=150
And D2 = x
Then, using M1D1 = M2D2
120* 45 = 150 * x
∴x = [(120´45 )/150] = 36
Question 5 of 5
5. Question
असिस्टेड रिप्रोडक्टिव टेक्नोलॉजी (Assisted reproductive technology: ART) में निम्नलिखित में से कौनसी चिकित्सा प्रक्रियाएँ शामिल हैं?
इन-विट्रो फर्टिलाइजेशन (In-vitro fertilization)
क्रायोप्रिजर्वेशन (Cryopreservation)
सरोगेसी (Surrogacy)
सही उत्तर कूट का चयन कीजिए:
Correct
उत्तर: d)
असिस्टेड रिप्रोडक्टिव टेक्नोलॉजी (Assisted reproductive technology: ART) में इन-विट्रो फर्टिलाइजेशन (In-vitro fertilization: IVF), इंट्रा-यूटेराइन इनसेमिनेशन (intra-uterine insemination: IUI), ऑयसाइट एंड स्पर्म डोनेशन (oocyte and sperm donation), क्रायोप्रेजर्वेशन (cryopreservation) जैसी प्रक्रियाएं और इसमें सरोगेसी (Surrogacy) भी शामिल है। हालांकि सभी सरोगेसी व्यवस्था में ART शामिल नहीं है।
यह तकनीक एक महिला के शरीर से अंडे (egg) को निकाल कर और उसे भ्रूण (embryo) बनाने के लिए एक पुरुष के शुक्राणु (sperm) के साथ निषेचित (fertilize) करती है।
Incorrect
उत्तर: d)
असिस्टेड रिप्रोडक्टिव टेक्नोलॉजी (Assisted reproductive technology: ART) में इन-विट्रो फर्टिलाइजेशन (In-vitro fertilization: IVF), इंट्रा-यूटेराइन इनसेमिनेशन (intra-uterine insemination: IUI), ऑयसाइट एंड स्पर्म डोनेशन (oocyte and sperm donation), क्रायोप्रेजर्वेशन (cryopreservation) जैसी प्रक्रियाएं और इसमें सरोगेसी (Surrogacy) भी शामिल है। हालांकि सभी सरोगेसी व्यवस्था में ART शामिल नहीं है।
यह तकनीक एक महिला के शरीर से अंडे (egg) को निकाल कर और उसे भ्रूण (embryo) बनाने के लिए एक पुरुष के शुक्राणु (sperm) के साथ निषेचित (fertilize) करती है।
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