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Dear Sir / Madam

Please tell the answer of the following question .

Q: -45/15 + -3/-27 + 8/9

Options

A) 2

B) -2

C) 4

D) (-4)

It will be a great help to me .

Thanking You

Yours Sincerly

Harjas Singh

Student Studying From Byjus .

The number marked with red is:

The surface area of a box which is in the form of a cuboid whose dimensions are l $\times$ b $\times$ h is__________.

If the diagonals of a parallelogram whose all four sides are equal are 14 cm and 16 cm, then what is the area of the parallelogram?

The reflection point of A(2, 5) in the y axis is (k, m). The value of k + m is ___.

If A = {c,a,r,t} and B = {a,r,t}, then

The steps to construct ${60}^{\circ }$ angle is given below. Arrange these steps in the correct sequence.

1. Taking O as centre, draw an arc of any size to cut OA at B.

2. Draw a line segment OA of any suitable length.

3. Join OC and produce it to any point D.

4. With B as centre draw another arc of the same size to cut the previous arc at C.

Boxes that are 12 inches tall are being stacked next to boxes that are 18 inches tall. What is the shortest height at which the two stacks will be of same height?

Question 1
Construct $\Delta$ DEF such that DE = 5 cm, DF = 3 cm and $\angle$ EDF = ${90}^{\circ }$

A:B = 4:5, B:C = 6:7and C:D = 14: 15. Find A:D.

The height of a particular tree is increasing at the rate of 10cm per month. What would be the height of the tree after 5 years if its present height is 10 m? (Growth of tree is uniform).

A tank with length, breadth and height of 5, 6 and 3 units respectively is open at the top. The cost of anti-microbial coating inside the tank if it is done at Rs.10 per sq. units is___________.

The coefficients of mn in $2m^2{n}^2$ and $2m^{2}n$ respectively are:

In the given figure, ∠ABC = ${90}^{\circ }$ and BM is a median, AB = 6 cm and BC = 8 cm. Then, the value of AM is

Steve conducts a survey in 15 villages of a locality and finds out the number of teachers in each village. The observations are as follows:
3, 3, 3, 2, 2, 1, 2, 3, 4, 4, 4, 4, 4, 1, 1. Which is the correct frequency table?

Given below is a double bar graph representing total number of boys and girls in class IX-A to IX-D.

Which section has maximum number of boys and second minimum number of girls?

Match the following with their square roots.

Numbers Square Roots

1. 289 a. 22

2. 1225 b. 17

3. 196 c. 35

4. 484 d. 14

Match the shapes mentioned in column 1 with the number of lines of symmetry it can have.
$$\begin{array}{cc}Shapes& \text{Lines of Symmetry}\\ \text{(a) Equilateral triangle}& \text{(i) 2}\\ \text{(b) Square}& \text{(ii) 3}\\ \text{(c) Circle}& \text{(iii) 4}\\ \text{(d) Rectangle}& \text{(iv) Infinte}\\ \text{(e) Regular Pentagon}& \text{(v) 5}\end{array}$$

1 km = ___ cm.

When A = 20, B = 10. Also, when A = 5, B = 40. What can we say about A and B?

A train with a speed of 68 Km/hr has crossed a bike of speed 32 Km/hr in 36 seconds. Then what is the length of the faster train?

In a race Karan covers 1m in $1^{st}$ second, in the next second he covers twice the distance he covered in $1^{st}$ second, in $3^{rd}$ second he covers twice the distance which he covered in $2^{nd}$ second and he continues to run like this till six seconds. After that he slows down, as in $7^{th}$ second he covers only half the distance which he covered in $6^{th}$ second and in $8^{th}$second he covers half the distance which he covered in $7^{th}$second and he continuous in that manner. If Karan completes the race in 9 seconds, find the length of given track. [4 MARKS]

Question 154 (ii)

In the given figure, $QS\perp PR$, $RT\perp PQ$ and QS = RT
Is $\angle PQR=\angle PRQ$? Give reason.

What cross-sections do you get when you give a: (i) vertical cut (ii) horizontal cut to the following solids?

(a) A brick
(b) A round apple
(c) A die
(d) A circular pipe
(e) An ice-cream cone.

A die is rolled 100 times and the outcomes are recorded as below. What is the probability of getting

(i) an odd number ?
(ii) an even number ?

$\begin{array}{ccccc}\text{Outcome}& 1& \text{Even number}<6& \text{Odd number}>1& 6\\ \text{Frequency}& 15& 33& 36& 16\end{array}$

[2 MARKS]

The collection of intelligent students in a class is

If a four digit number A381 is divisible by 11 then find the smallest value for A( Natural number)

Which of the following should be the FIRST sentence after rearrangement?

In the given figure, a square of side 5 cm is cut as shown in the first figure and rearranged to form a big square as shown in the second figure. Then the value of x and y are

A single 6-sided die is rolled. What is the probability of rolling an even number?

$(12+2\frac{1}{3})-\frac{1}{3}$ equals

54 $\frac{km}{h}$ = ___ $\frac{m}{s}$

How can 1 be a triangular number. I know that 3 can be a triangular but how can 1 be triangular number

Question 117 (i)

Science Application
The king cobra can reach a length of 558 cm. This is only about 60% of the length of the largest reticulated python. Find the length of the largest reticulated python.

Question 84

Rohan's mother gave him Rs. $3x{y}^2$ and his father gave him Rs. $5(x{y}^2+2)$.Out of this money, he spent Rs. $(10-3x{y}^2)$ on his birthday party. How much money is left with him?

If any closed figure is congruent to another closed figure, the corresponding parts will be ___.

Question 68

State whether the statement is True or False.

Vertically opposite angles are either both acute angles or both obtuse angles.

The hour hand of a clock is 4.5 cm long. What distance does its tip cover in 12 hours?

The diagonal from B to D is drawn in parallelogram ABCD. Which of the following methods can NOT be used to prove $\Delta DAB\cong \Delta BCD$?

Question 138 (iii)

Earth science
The table lists the world's 10 largest deserts.
What percentage of the deserts listed are in Asia ?

Refer to the following figure. Three squares are constructed on each side of the triangle as shown, with the length of each square equal to the side on which it is constructed. If the largest side is $13$, sum of the areas of the three squares is___. [The angle opposite to the blue colour square is the right angle]

Pick out the features of a double bar graph.

Question 68

Fill in the blanks to make the statement true.

In the given figure, AB = AD and $\angle BAC=\angle DAC$. Then,
i) $\Delta$ ___ $\cong \Delta ABC$
ii) BC = ___
iii) $\angle BCA=$ ___
iv) Line segment AC bisects ___ and ___

Question 83(v)
Observe the following data:
$\begin{array}{ccc}& & \\ & \text{Government School, Chandpur}& \\ \text{Daily attendance}& & \text{Date: 15.04.2009}\\ \text{Class}& \text{Total students}& \text{Number of students}\\ & & \text{present on that day}\\ \text{VI}& \text{90}& \text{81}\\ \text{VII}& \text{82}& \text{76}\\ \text{VIII}& \text{95}& \text{91}\\ \text{IX}& \text{70}& \text{65}\\ \text{X}& \text{63}& \text{62}\end{array}$
What percentage of class VI students were absent?