Question

Change the following statements using expressions into statements in ordinary language. (For example, Given Salim scores $r$runs in a cricket match, Nalin scores $(r+15)$ runs.

In ordinary language - Nalin scores $15$ runs more than Salim.)

1. A notebook costs $₹p$. A book costs $₹3p$
2. Tony put $q$marbles on the table. He has $8q$ marbles in his box.
3. Our class has $n$ students. The school has $20n$students.
4. Jaggu is $z$ years old. His uncle is $4z$ years old and his aunt is $(4z-3)$ years old.
5. In an arrangement of dots there are $r$ rows. Each row contains $5$ dots

Answer 1

Using the concept of forming word problems from simple equations change the expressions in statements:

$\left(i\right)$ A notebook costs $₹p$. A book costs $₹3p$

By eliminating the variable $p$, the given expression can be written as an ordinary statement as

The cost of a book is $3$ times the cost of a notebook.

$\left(ii\right)$ Tony put $q$marbles on the table. He has $8q$ marbles in his box.

By eliminating the variable $q$, the given expression can be written as an ordinary statement as

Tony has $8$ times as many marbles in his box, as on the table.

$\left(iii\right)$Our class has $n$ students. The school has $20n$students

By eliminating the variable $n$, the given expression can be written as an ordinary statement as

The school has $20$ times more students than in my class.

$\left(iv\right)$Jaggu is $z$ years old. His uncle is $4z$ years old and his aunt is $(4z-3)$ years old.

By eliminating the variable $z$, the given expression can be written as an ordinary statement as

Jaggu's uncle is $4$times older than Jaggu and Jaggu's aunt is $3$ years younger than his uncle.

$\left(v\right)$In an arrangement of dots there are $r$ rows. Each row contains $5$ dots

By eliminating the variable $r$, the given expression can be written as an ordinary statement as

The total number of dots is $5$ times the number of rows.