Formation of an Expression

Q.

Write a application to the principal for two days leave.

Q.

An elevator descends into a mine shaft at the rate of $6\mathrm{m}/\min$. If the descent starts from$10\mathrm{m}$ above the ground level, how long will it take to reach $-350\mathrm{m}$.

Q.

A boy has as many sisters as brothers , and his sisters have half as many sisters as brothers. How many boys and girls are there in the family.

Q. A container is 4/5 full. When 10 L of milk is poured into it, the container become 9/10 full. What is the capacity of the container?W

Q.

Solve the following equation and check your results: $8x+4=3\left(x-1\right)+7$

Q.

Max is thinking of an number which he calls $n$. He adds $8$ and then doubles the sum. Write an expression to represent Maxs number.

Q.

Question 29

'x exceeds y by 7' can be expressed as ___ .

Q.

Question 1(b)

Answer the following:

The length of a rectangular hall is 4 meters less than 3 times the breadth of the hall. What is the length, if the breadth is b meters?

Q.

Ranjit scores $80$ marks in english and $x$ marks in hindi. What is his total score in the two subjects?

Q.

Write the expression for "y multiplied by 10 and then 7 added to the product".

1. 10 + y + 7

2. y + 7

3. 7y + 10

4. 10y + 7

Q.

Question 5(ii)

Give expression for the following case.

11 subtracted from 2m.

Q.

In how many ways can $21$ English and $19$ Hindi books be placed in a row so that no two Hindi books are together?

1. $1540$

2. $1450$

3. $1504$

4. $1405$

Q. Mother has made laddus. She gives some laddus to guests and family members, and still 5 laddus remain. If the number of laddus mother gave away is $l$, how many laddus did she make?

1. $l-5$
2. $l\times 5$
3. $l+5$
4. $5-l$

Q. How many times does the digit $1$ appear in numbers from $1$ to $100$?

1. $18$
2. $19$
3. $20$
4. $21$

Q.

Question 90

In a village, there are 8 water tanks to collect rainwater. On a particular day, $x$ litres of rainwater is collected per tank. If 100 litres of water was already there in one of the tanks, then what is the total amount of water in the tanks on that day?

Q. The length of a rectangular hall is 4 metre less than 3 times the breath of the hall. What is the length, if the breath is b metres.

Q.

Question 5(i)

Give expression for the following case.

11 added to 2m.

Q.

Question 40

If I spend f rupees from 100 rupees, money left with me is ___ rupees.

Q.

Question 1 (ii)

Get the algebraic expression in the following case using variables, constants and arithmetic operations:

One-half of the sum of numbers x and y.

Q.

Question 4(ii)

Give expression for the following case.

7 subtracted from p.

Q.

How many number plates can be made if the number plates have two letters of the English alphabet $\left(a-z\right)$ followed by two digits $(0-9)$if the repetition of digits or alphabets is not allowed?

Q.

If $|2x-3|<|x+5|$, then $x$ lies in the interval

1. $\left(-3,5\right)$

2. $\left(5,9\right)$

3. $\left(-\frac{2}{3},8\right)$

4. $\left(-8,\frac{2}{3}\right)$

5. $\left(-5,\frac{2}{3}\right)$

Q.

Question 5(iv)

Give expression for the following case.

5 times y from which 3 is subtracted.

Q.

Question 94

On my last birthday, I weighed 40 kg, If I put on m kg of weight after a year, what is my present weight ?

Q.

Question 5(vii)

Give expression for the following case:

y is multiplied by 5 and result is subtracted from 16.

Q.

Solve the following equation: $13x-5=\frac{3}{2}$

Q.

Question 85

Translate each of the following statement into an equation, using x as the variable.

(a) 13 subtracted from twice a number gives 3.

(b) One-fifth of a number is 5 less than that number.

(c) Two - third of a number is 12.

(d) 9 added to twice a number gives 13.

(e) 1 subtracted from one-third of a number gives 1.

Q.

Question 14

Savitri has a sum of Rs.$x$. She spent Rs. 1000 on grocery, Rs. 500 on clothes and Rs. 400 on education and received Rs. 200 as a gift. How much money (in Rs.) is left with her?

(a) $x-1700$

(b) $x-1900$

(c) $x+200$

(d) $x-2100$

Q. The ratio of the number of teachers to students in a school is 1:20. If there are 240 students in the school, how many teachers are there?

1. 12

Q.

You have $\$30$ to buy baseball cards. Each pack of cards costs $\$5$. Write and solve an inequality that represents the numbers of packs of baseball cards you can buy and still have at least$\$10$ left.