Practice Question and Answer
8Q: A boat travels 72 km downstream in 8 hours and 84 km upstream in 12 hours. Find the speed of the boat in still water and the speed of the water current ? 2013 05b5cc71ee4d2b4197774f581
5b5cc71ee4d2b4197774f581- 19 and 3 kmphfalse
- 26 and 7 kmphfalse
- 38 and 1 kmphtrue
- 47 and 2 kmphfalse
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Answer : 3. "8 and 1 kmph"
Explanation :
Answer: C) 8 and 1 kmph Explanation: Downstream speed = 72km/8hrs = 9 kmphupstream speed = 84km/12hrs = 7 kmphspeed of boat = avg of downstream and upstream speedsspeed of boat = (9+7)/2kmph = 8 kmph.current speed = half of the difference of downstream and upstream speedscurrend speed = (9-7)/2kmph = 1 kmph
Q: How many Enzymes are there in the Human Body? 2013 05b5cc6b3e4d2b4197774d3dc
5b5cc6b3e4d2b4197774d3dc- Show AnswerHide Answer
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Answer :
Explanation :
There are nearly about 75000 enzymes of 3 classes are there in the human body. They are : 1. Metabolic Enzymes - Enzymes that help to run our Bodies 2. Digestive Enzymes - Enzymes that help in digesting Food 3. Food Enzymes - Enzymes from raw foods that start our Food digestion.
Q: A letter through which the same information is sent to many officers, departments and employees, is called……………
2013 05e5f9d9362abf16a39f99929
5e5f9d9362abf16a39f99929- 1official orderfalse
- 2notificationfalse
- 3circulartrue
- 4tender noticefalse
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Answer : 3. "circular "
Q: साधारण ब्याज की दर क्या है जबकि 13,000 रूपये का $$ {3{1\over 2}}$$ वर्ष के लिए ब्याज 6,370 रूपये हैं
2012 05fb4e1702638fd6f56649583
5fb4e1702638fd6f56649583- 15 %false
- 210 %false
- 314 %true
- 412%false
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Answer : 3. "14 %"
Q: हाल ही में, कंप्यूटर में ‘Cut-Copy-Paste’ फंक्शन लाने वाले वैज्ञानिक का निधन हुआ है, जिनका नाम है?
2012 05f0d468ffce67160728dd815
5f0d468ffce67160728dd815- 1लैरी टेस्लरtrue
- 2मार्क जॉर्डनfalse
- 3डेविड कीपfalse
- 4ओस्लो जर्मनfalse
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Answer : 1. "लैरी टेस्लर"
Q: पहले पाँच अभाज्य संख्याओं का औसत ज्ञात कीजिए
2012 15ef04bd381a47f2e7ae4419f
5ef04bd381a47f2e7ae4419f- 14.5false
- 23.6false
- 35.4false
- 45.6true
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Answer : 4. " 5.6"
Q:निर्देश: निम्नलिखित संख्या श्रृंखला में प्रश्नवाचक चिन्ह (?) के स्थान पर क्या आएगा?
100 100 50 150 37.5 ?
2012 05e9d28d0772f97276f50c605
5e9d28d0772f97276f50c605- 1177.5false
- 2187.5true
- 3197.5false
- 4207.5false
- 5217.5false
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Answer : 2. "187.5 "
Q:Directions : In these questions , a part of the sentence is given in bold . Below are given alternatives to the bold part at (A) , (B) and (C) which may improve the sentence . Choose the correct alternative . In case no improvement is needed you answer is (D ) .
Vivek was astonished at his failure in the exam.
2012 05f6aef96558d255013bb2c3a
5f6aef96558d255013bb2c3a- 1at his failingfalse
- 2in his failingfalse
- 3No improvementtrue
- 4in his failurefalse
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