Practice Question and Answer
8 4 Answer : 3. "21/38"
5 Q:
5e9d1422bf0a265d837b845b 4 4 Q:
5fa27af8c21c860b972a03e8 Answer : 2. "
4 Q:
5f311350c006da57832aa8a1 Answer : 3. "B"
4 Answer : 2. "2"
4 4
Q: A box contains 5 detective and 15 non-detective bulbs. Two bulbs are chosen at random. Find the probability that both the bulbs are non-defective. 3357 05b5cc7d1e4d2b4197775124f
5b5cc7d1e4d2b4197775124f- 15/19false
- 23/20false
- 321/38true
- 4None of thesefalse
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Answer : 3. "21/38"
Explanation :
Answer: C) 21/38 Explanation: n(S) = C220 = 190 n(E) = C215 = 105 Therefore, P(E) = 105/190 = 21/38
Q:निर्देश: निम्नलिखित प्रश्नों में प्रश्न चिह्न (?) का क्या मान होना चाहिए?
25 % of 420 - ? % of 140=77
3357 05e9d1422bf0a265d837b845b
5e9d1422bf0a265d837b845b- 125false
- 236false
- 320true
- 440false
- 5None of thesefalse
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Answer : 3. "20"
Q: Who is the author of Khulasat-ul-Tawarikh ? 3356 05c2f1af394bba731de8f0cff
5c2f1af394bba731de8f0cff- 1Sujan Raj Khatritrue
- 2Abdul Hamid Lahorifalse
- 3Inyat Khanfalse
- 4Abul Fazlfalse
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Answer : 1. "Sujan Raj Khatri"
Q: दी गई उत्तर आकृतियों में से उस आकृति को चुनिए जिसमें प्रश्न आकृति निहित है।
3354 15fa27af8c21c860b972a03e8
5fa27af8c21c860b972a03e8- 1false
- 2true
- 3false
- 4false
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Answer : 2. "
"
Q: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).
Either the operator (A) /or the foreman are (B)/ to blame for the accident. (C)/No error (D).
3354 05f311350c006da57832aa8a1
5f311350c006da57832aa8a1- 1Afalse
- 2Cfalse
- 3Btrue
- 4Dfalse
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Answer : 3. "B"
Explanation :
Right sentence is--Either the operator or the foreman is to blame for accident.
Q: If a2+b2 = c2 , then 1logc+ab + 1logc-ab = ? 3354 15b5cc761e4d2b4197774fd67
5b5cc761e4d2b4197774fd67- 11false
- 22true
- 34false
- 48false
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Answer : 2. "2"
Explanation :
Answer: B) 2 Explanation: Given a2 + b2 = c2 Now 1logc+ab + 1logc-ab = logbc+a + logbc-a = logbc2-a2 = 2logbb = 2
Q: Which are the main gases present in Sun ? 3354 05c3305eba3a98b0345a7b114
5c3305eba3a98b0345a7b114- 1Hydrogen and Heliumtrue
- 2Hydrogen and Argonfalse
- 3Argon and Heliumfalse
- 4Hydrogen and Carbon Diaoxidefalse
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Answer : 1. "Hydrogen and Helium"
Q: Which country is the largest producer of tea in the world 3353 05d2339c59cb59714c878c42e
5d2339c59cb59714c878c42e- 1Chinatrue
- 2Indiafalse
- 3Sri Lankafalse
- 4Indonesiafalse
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Answer : 1. "China"
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