English basic information

What are the basic requirements of a chemical equation ? Discuss with examples the information conveyed by a chemical equation.

In a class, 30% students study English, 15% study Hindi and 10% study both English and Hindi. One student is selected at random. Find the probability that (i) He studies English if it known that he Hindi (ii) He studies Hindi if it is known that he studies English

A basic communication system consists of: {:((1)"transmitter",(2)"information source",),((3)"user of information",(4)"channel",(5)"receiver"):}

A basic communication system consists of (A) transmitter (B) information source (C ) user of information (D)channel (E ) receiver Choose the correct sequence in which these are arranged in a basic communicarion system.

A basic communication system consists of (A) transmitter (B) information source (C ) user of information (D)channel (E ) receiver Choose the correct sequence in which these are arranged in a basic communicarion system.

In a group of 50 students, the number of students studying French, English, Sanskrit were found to be as follows French = 17, English = 13, Sanskrit = 15 French and English = 09, English and Sanskrit = 4, French and Sanskrit = 5, English , French and Sanskrit = 3. Find the number of students who study (i) only French, (ii) only English. (iii) only Sanskrit. , (iv) English and Sanskrit but not French. (v) French and Sanskrit but not English. (vi) French and English but not Sanskrit. (vii) atleast one of the three languages. (viii) none of the three languages.

The order of basic strength of the given basic nitrogen atoms is :

The marks obtained by 10 candidates in English and Mathematics are given below: Estimate the probable score for Mathematics if the marks obtained in English are 24.

There is a group of 50 persons who can speak English or Tamil or both. Out of these persons , 37 can speak English and 30 cm speak Tamil. How many can speak English only ?

In a group of 50 persons, 40 speak Hindi and 25 speak English and Hindi both. Find how many persons speak only English ? Also find how many persons speak English ?