math for children

Ex3: There were 2500 persons who bought tickets to see a village fair. The adults paid 75 paise each for their admission tickets but the children paid only 25 paise each. If the total receipt account to Rs.1503, find how many adults and how many childr

Let the number of adults be x and the number of children be y. Convert the verbal statements to mathematical equations There were 2500 persons x + y = 2500 Adults paid 75 paise and Children paid 25 paise The amount collected is Rs.1503 ..

study data characteristics

Classified data thus bear certain characteristic some of which can be quantified or numerically specified. As a particular, suppose an investigator finds, 2,1,0,3,2,2,4,1,2,3,4,2,5,0,2 3,2,4,0,3,2,3,2,4,1,2,3,4,5,1 as the number of children in 30 families. This record or presentation of data is crude or same or ungrouped or ..

read the passage given below and answer the questions that follow:

1 Let us suppose that you are a parent. Would you allow your children to read any book they wanted to without first checking its contents? Would you take yoxir children to see any film without first finding out whether it is suitable for them? If your answer to these questions is 'yes', then you are either extremely permissiv..

body mass index height

> On the other hand, there are examples where the relationship between two variables is not so sharply defined; for example, relationship between cost of living and wages, or price of potatoes and the quantity produced, or a child's age and height. It is not true that potato prices are always equal for crops of equal size or children of ..

condition

1. A family has two children. What is the probability that both the children are boys given that at least one of them is boy? 2. Ten cards numbered 1 through 10 are placed in a box, mixed up thoroughly and then one card is drawn randomly. If it is known that the number on the drawn card is more than 3. What is the probabil..

treatment (control)

It is treated with anti-helminth drugs such as piperazine, Mebendazole, Albendazole, etc. Prophylaxis The preventive measures are: (i) Proper disposal of human faeces, (ii) Avoid using raw materials and contaminated water. (iii) Treatment of parasitised individuals and (iv) Education of children in ..

glucose: uses

(i) Glucose is used in preparation of various types of liquors. (ii) It is used as a direct source of energy and is given to children, invalids and sports persons. (iii) Glucose is used in preservation of sweets, fruits etc. (iv) Calcium gluconate is used as medicine to make up the deficiency of calcium in the body...

water problems

point $A$. The eagle flew vertically up to height $x$ and then flew in a straight line to point $A$, the distance, travelled by each being the same. Find the value of $x$. 4. Rs 250 are divided equally among a certain number of children. If there are 25 children more, each would have received 50 paise less. Fin..

a visit to a book fair

The year 2002 was declared "The year of Books" by the National Book Trust of India., With this note the nation's capital played host, to the World Book Fair at the Trade Fair Pragati Maidan.. On hearing this my friends and I,expressed our eagerness to go and watch this mega festival. Our principal readily agreed and students went by ..

types of natural selection

? 5. In an examination, 18 candidates passed Mathematics, 17 candidates passed Physics, 11 candidates passed both subjects and 1 candidate failed both- subjects. Find: (i) the number of candidates that passed Mathematics only; (ii) the number of candidates that passed Physics only, (iii) the total number of candidates that sat ..

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