Two friends Jack and Jill attend IIT entrance test which has three sections, Mathematics, Physics and Chemistry.Each question in Mathematics, Physics and Chemistry carry 5 marks, 8 marks and 3 marks respectively. Jack attempted 10 questions in Mathematics, 12 in Physics and 6 in Chemistry while Jill attemped 18, 5 and 9 questions in Mathematics, Physics and Chemistry respectively Assuming that all the questions attempted were correct, find the individual marks obtained by the boys by showing the above information as a matrix product.
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A student can solve 2 out of 4 problems of mathematics, 3 out of 5 problem of physics, and 4 out of 5 problems of chemistry. There are equal number of
Correct Answer - B Let `P(m),P(c),P(c)` be the probabilaty of selecting a book of maths, physics, and chemistry, respectively. Clearly, `P(m)=P(P)=P(c)=1/3` Again let `P(s_(1))and P(s_(2))` be the probability that he solves...
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In an objective paper, there are two sections of 10 questions each.For "section 1", each question has 5 options and only one optionis correct and "sec
Correct Answer - D Let `p_(1)` be the probability of being an answer correct from section 1. Then `p_(1)=1//5.` Let `p_(2)` be the probability of being an answer correct from section...
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A multiple choice emamination has 5 questions. Each question has three alternative answers of which exactly one is correct. The probability that a stu
Correct Answer - C Answer for any question can be guessed in 3 ways. `therefore` Probability that any question is correct `=1/3` From five questions if at least four questions are...
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Mathematics, Economics, Physics, Chemistry
1. Economics 2. Chemistry 3. J. M. Keynes 4. Sunshine 5. AC – Car 6. Interest 7. Individual Income 8. Investment 9. Book 10. Labour
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A mock IIT-JEE exam constitutes of 150 questions. Each correct answer fetches 4 marks . There is a penally of 2 marks for every incorrect answer and a
Correct Answer - `35%`
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In a class of 80 students, 55 students passed in mathematics and 60 passed in chemistry. 10 stu-dents failed in both mathematics and chemistry. (i) Ho
Correct Answer - (i) 45 , (ii) 25
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\[ \begin{array}{l} \text { Part - II } \\ \text { Section - D } \end{array} \] Note: answer the following question. 18. From following receipts and payments A/C of Sri Charitable Trust, \[ 1 \times 20=20 \] Additional information A. Subscriptions receivable for the year 2020 R5 2,500 B. Prepaid Rent Rs. 300 C. Outstanding stationary Bills Rs. 150 D. Capitalize donations E. Half of the entrance fees capitalized Interest receivable for the year \( 2020 Rs .200 \)
receipts. rs. payment. rs to donation. 25,000 by rent and taxes. 1300 to membership 1500 by startionary. 1200 fees to entrance fees 2400. byscholar ship 200 to...
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i. Organic chemistry ii. Inorganic chemistry iii. Physical chemistry
i. Organic chemistry : It deals with properties and reactions of compounds of carbon. ii. Inorganic chemistry : It deals with the study of all the compounds which are not organic. iii. Physical chemistry...
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The branch of chemistry which deals with carbon compounds is called ……………. chemistry.
(A) organic In the organic chemistry we deal only carbon compounds like, alkane, alkenes, Alkynes, aromatic compounds etc.
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