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How much time will it take for ₹450 to yield a simple interest of ₹81 at 4.5 % per annum?

Question 3 (i)
The squares of which of the following would be odd number:

431

In a factory 70% of the workers like oranges and 64% likes apples. If x% like both oranges and apples, then what are the possible values of x?

Question 2 (i)
Find the number of digits in the square root of each of the following numbers (without any calculation):

64

A swimming pool is 20 m long, 15 m wide and 3 m deep. Find the cost of repairing the floor and wall at the rate of Rs 25 per square metre.

An ice-cream brick measures 20 cm by 10 cm 7 cm. How many such bricks can be stored in deep fridge whose inner dimensions are 100 cm by 50 cm by 42 cm?

What must be subtracted from $3a^2-6ab-e{b}^2-1$ to get $4a^2-7ab-4b^2+1$?

The equation to the circle with centre (2, 1) and touching the line 3x + 4y = 5 is

Take a two digit number 'ab'. The number is reversed, and difference between ab and its reverse is taken as cd. What is the value of c + d?

Consider the following calendar.

Consider any four numbers which form a square as shown below.

The difference between the product of the diagonal numbers will be equal to

Saurabh invests Rs. 48,000 for 7 years at 10% per annum compound interest. Calculate :

(i) the interest for the first year.

(ii) the amount at the end of the second year.

(iii) the interest for the third year.

Factorise:
$9m^2+24m+16$

Find the values of the letters [3 MARKS]

$\begin{array}{c}AB\\ \times 6\\ BBB\end{array}$

Factorise:

$7y^2-19y-6$

After allowing a discount of $20\%$ on the marked price of a lamp, a trader loses $10\%$. By what percentage is the marked price above the cost price?

Question 84(i)

What is the type of other angles of a linear pair, if one of its angles is acute?

The sum of all two digit odd numbers is:

Calculate the total number of cars in the given histogram.

Question 86(i)

A die is rolled once. What is the probability that the number on top will be Odd ?

$\text{If the selling price of an air conditioner is equal to}1\frac{1}{3}\text{of its cost price find the gain per cent}$

The three angles of a quadrilateral are respectively equal to ${110}^{\circ },{50}^{\circ }$ and ${40}^{\circ }.$ Find its fourth angle.

Which of the following is same as 1024?

In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 15 m high. If the length of the ship is 35 metres, how long is the model ship?

The list price of a table fan is Rs. 480 and it is available to a retailer at $25\%$ discount. For how much should a retailer sell it to gain $15\%$?

A dealer bought two tables for Rs. 3120. He sold one of them at a loss of $15\%$ and other at a gain of $36\%$. Then he found that each table was sold for the same price, find the cost price of each table.

There are different kinds of symmetry. One of them is bilateral symmetry. Which of the following figures exhibit bilateral symmetry?

A cycle dealer offers a discount of $10\%$ and still makes a profit of $26\%$. What is the actual cost to him of a cycle whose market price is Rs. 840?

For y = ___, linear equation 3y + 1 = 16 is satisfied.

Question 33

Percentages are___ to fractions with ___ equal to 100.

Question 54

In the following question, fill in the blanks to make the statements true.

To add the numbers given in standard form we first convert them into numbers with ___ exponents.

Question 87(iii)

Classify the following statements under appropriate headings.
Sun setting in the evening?

$\begin{array}{ccc}\text{Certain to happen}& \text{Impossible to happen}& \text{May or may not happen}\\ & & \\ & & \end{array}$

The probability of getting a composite number in a throw of dice is

The diagonal of a quadrilateral shaped field is 25 m and the perpendiculars dropped on it from the remaining opposite vertices are 8 m and 12 m. Therefore the area of the field is 250m².

A company has 5 sectors which are paid according to the chart shown below. Which of the sectors is the highest paid sector? If the company has to give bonus to its employees in a uniform way will the pie chart change?

The angles of a quadrilateral are $x^{\circ },(x-10{)}^{\circ },(x+30{)}^{\circ }$ and $(2x{)}^{\circ }$. Find the value of the greatest angle.

Coefficient of $y$ in the term $-\frac{y}{9}$ is ___.

1. 45

AB is the diameter of the circle with centre O. P is a point on the circle such that PA = 2PB. If AB = d units, find BP