Explore topic-wise InterviewSolutions in Current Affairs.

How many edges are there for a prism with hexagonal base?

Find the product of $(2a^2+9)(2a^2+5).$

What are rational number

Please explain it in a different way so that I can learn I can't understand app's video.

From shivang Mamgain

Byju's class 8 ICSE

St.xavier's.sr.sec.school.

44 c , Chandigarh

Follow the following steps of constructions:
(a) Draw a line l and mention a point O on it.
(b) With O as center and a short radius, draw an arc that cuts line l at A.
(c) With A as center and the same radius (as in step 2), draw an arc that cuts the first arc at B.
(d) Join O and B. Extend OB to get a ray.
What is the measure of ∠AOB (in degrees)?

What is a reciprocal of a number

Question 4 (i)
Name the quadrilateral whose diagonals:

(i) Bisect each other.

Three angles of a quadrilateral are ${100}^{\circ }$, ${90}^{\circ }$ and ${85}^{\circ }$ .The fourth angle is

There is a regular octagonal park. Find the surface area of the park (in $m^2$ ).

Find the perimeter of the given triangle.

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 covered in $2^{nd}$ second and he continues to run like this till six seconds. After that due to tiredness his speed keeps on going 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]

The cost of Maruti 800 in the year 1998 was ₹ 2,50,000. After the end of one year and four months, the price underwent depreciation by 10% per annum. Its new price is

Ravi purchased a vehicle at ₹ 60,000. He sold it at a price 30% less than its value to Amit. Ravi also spent 5% of the price at which he sold to Amit in documents transfer. Find the overall Percentage loss in the entire transaction for Ravi.

The quadrilateral formed by joining the mid-points of consecutive sides of a rectangle ABCD, taken in order, is a rhombus. Then which of the following is correct?

In the given frequency distribution, which is/are the median term(s)?
$\begin{array}{cc}Ageinyears& Numberofpeople\\ 15& 3\\ 16& 8\\ 17& 10\\ 18& 10\\ 19& 5\\ 20& 4\end{array}$

Amita and Balu applied for a typist's job. Amita can type 120 words per minute while Balu can type 80 words in 50 seconds. The employer wants to select the one with the fastest typing speed. Who will get the job?

Manoj deposited a sum of Rs 64000 in a post office for 3 years, compounded annually at $7\frac{1}{2}\%$ per annum. What amount will he get on maturity ?

6 pipes fill a tank in 120 minutes, then 5 pipes will fill it in

(a) 100 min (b) 144 min

(c) 140 min (c) 108 min

An item marked at ₹ 840 is sold at a discount of 15%. Find the selling price of the item.

How many digits are there in the square root of 758641?

The value of the expression ${101}^2$ - ${100}^2$ is ___.

This shape is formed by using 6 three-dimensional regular objects. Each of these individual objects is a ___.

The price of tomatoes is increased by 25%. By what percentage should the price of tomatoes decrease inorder to bring it back to its original cost?
___

$$\begin{array}{ccccc}X& 100& 200& 300& 400\\ Y& & 30& 20& 15\end{array}$$

What is the value of $y$ when $x$ = 100

A square park of side 7 m has to be paved with bricks. If the cost of laying bricks is ₹$10/m^2$, then the cost of laying the bricks is ___.

Find the square root of:

$\left(i\right)\frac{441}{961}$ $\left(ii\right)\frac{324}{841}$ $\left(iii\right)4\frac{29}{49}$ $\left(iv\right)2\frac{14}{25}$ $\left(v\right)2\frac{137}{196}$

$\left(vi\right)23\frac{26}{121}$ $\left(vii\right)25\frac{544}{729}$ $\left(viii\right)75\frac{46}{49}$ $\left(ix\right)3\frac{942}{2209}$ $\left(x\right)3\frac{334}{3025}$

$\left(xi\right)21\frac{2797}{3364}$ $\left(xii\right)38\frac{11}{25}$ $\left(xiii\right)23\frac{394}{729}$ $\left(xiv\right)21\frac{51}{169}$ $\left(xv\right)10\frac{151}{169}$

Evaluate :
(i) ${\left(\frac{4}{7}\right)}^3$
(ii) ${\left(\frac{10}{11}\right)}^3$
(iii) ${\left(\frac{1}{15}\right)}^3$
(iv) ${\left(1\frac{3}{10}\right)}^3$

Question 120

Solve the following question:

How many square metres of carpet will be required for a square room of side 6.5 m to be carpeted?

Factorise:
$x^2+14x+49$

The perimeter of a triangle is $6p^2-4p+9$ and two of its adjacent side are $p^2-2p+1$ and $3p^2-5p+3$. Find third side of triangle. [4 MARKS]

Multiply the terms $-3x^2{y}^2,-2xy,2x^{2}y$ and verify the product for $x=1$ and $y=2$

Read the information given below and answer following two questions.

A bag contains 4 red, 4 green and 4 blue balls.

Two balls are drawn at random without replacement.

Q50. What is the probability that one ball is blue and other green?

नीचे दी गई जानकारी को पढ़िये और इसके आगे आने वाले प्रश्नों के उत्तर दीजिए।

एक थैले में 4 लाल, 4 हरी और 4 नीली गेंदें हैं।

बिना बदले दो गेदों को यादृच्छिक रूप से निकाला जाता है।

Q50. एक गेंद नीली और दूसरी हरी होने की प्रायिकता क्या है?

Solve the following equations and verify your answer :

$(\frac{x+1}{x-4}{)}^2=\frac{x+8}{x-2}$

What will be the digit at the unit's place, if the cube of 5832 is taken?

Which among the following number lines is used to represent points A and B where A = $\frac{-3}{2}$ and B = $\frac{1}{2}$ ?

If we subtract $-4x^{2}y$ from $2x^{2}y$ we get .

$\text{In parallelogram ABCD, E is the mid-point of AD and F is the mid-point of BC. Prove that BFDE is a parallelogram.}$

For which of the following applications is precise geometric constructions not necessary?

Ashok lent out Rs. Rs. 7000 at 6% and Rs. 9500 at 5%/ Find his total income from the interest in 3 years.

If x=2 and y=3, what is the value of $x^x$+$y^y$ ?

A student gets 3 marks for answering a question correct and loses 1 mark for answering it wrong. Suppose he answers 5 questions correct and 2 questions wrong, then marks scored by him are

The value of $\frac{(1.4{)}^3-0.744}{(1.1{)}^3-0.331}$ is

Two equilateral triangle has their sides in ration 3:5 what will be the ratio of their area and perimeter respectively.

-1/2+ [(-4/3)+3/7] and [(-1/2)+3/7]+(-4/3)

are there same

"VAT" means: