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A B and C can do a piece of work in 12 15 and 20 days respectively how long will it take to do it working together?

On Tuesday the mailman delivers 4 cheques for Rs. 8000 each and 2 bills for Rs. 6000 each. If you had a starting balance of Rs. 30000 , what is the ending balance?

Question 2 (iii)
Take any point O in the interior of a triangle PQR :
Is OR + OP > RP?

How many letters of the English alphabet have both line symmetry and point of symmetry?

If the order of symmetry is 1, then the figure is said to have ___.

$\left(\frac{1}{5}\right)$ divided by $\left(\frac{4}{5}\right)$ is-

The numbers which are used for counting object are called_________

The value of ($3^0$ + $4^{-1}$) × $2^2$ is

Which of the following is not an empty set?

Compare the ratio 6 : 7 and 7 : 8 , which is smaller

A vehicle covers 48.096 km in 2.4 litres of petrol. How much distance will it cover in 1 litre of petrol? Express in metres [4 MARKS]

If measure of sides of a quadrilateral are given as AB = 4 cm, CD = 5 cm, and angles are given as ∠ ABC = ${75}^{\circ }$, ∠ BCD = ${35}^{\circ }$ and ∠ CDA = ${135}^{\circ }$, can you construct a quadrilateral ABCD?

Question 56
Fill in the blank to make the statement true.
is a net of a ___.

Find the reciprocal of $\frac{3}{4}\times 2$.

Construct a circle of radius 10 cm. What is the diameter of the circle? [2 MARKS]

Find the fourth proportion of 2 , 4 and 8

Identify constant from the options:

Question 121

Each of the two equal angles of an isosceles triangle is four times the third angle. Find the angles of the triangle.

What is the length of the missing leg.

Simplify:

$x^5÷(x^2\times y^2)\times y^3$

Below is a picture of a popcorn cup. Can you identify the quadrilateral formed by its lateral faces?

Arjun: If a figure can be folded along any line such that one half superimposes the other, it is known as a symmetric figure.

Shubh: If you can find a line in the figure which divides it into identical parts, then the figure is always symmetric.

Question 98

Find out 8 % of 25 kg.

On comparing the cash book with passbook of Naman, it is found that on March 31, 2010, bank balance of Rs. 40,960 showed by the cash book differs from the bank balance with regard to the following

(i) Bank charges Rs. 100 on March 31, 2010, are not entered in the cash book.

(ii) On March 21, 2010, a debtor paid Rs. 2,000 into the company's bank in settlement of his account, but no entry was made in the cash book of the company in respect of this.

(iii) Cheques totalling Rs. 12,980 were issued by the company and duly recorded in the cash book before March 31, 2010, but had not been presented at the bank for payment until after that date.

(iv) A bill for Rs. 6,900 discounted with the bank is entered in the cash book by recording the discount charge of Rs. 800.

(v) Rs. 3,520 is entered in the cash book as paid into the bank on March 31st, 2010, but not credited by the bank until the following day.

(vi) No entry has been made in the cash book to record the dishonour on March 15, 2010, of a cheque for Rs. 650 received from Bhanu.

Prepare a reconciliation statement as on March 31, 2010.

Sumeet purchased a book costing ₹ 24.75 and a pencil box. If he got back ₹ 32.75 when he gave a ₹ 100 note. What is the cost of the pencil box?

Question 110
Draw the net of a triangular pyramid with the base as an equilateral triangle of side 3 cm and slant edges 5 cm.

Question 21

Which of the following does not represent an integer?

a) $0÷(-7)$
b) $20÷(-4)$
c) $(-9)÷3$
d) $(-12)÷5$

Question 5(b) :

How quickly can you do this? Fill appropriate sign (<, =, >):

$\frac{2}{4}\square \frac{3}{6}$

Question 110

A circular pond is surrounded by a 2m wide circular path. If the outer circumference of circular path is 44 m, find the inner circumference of the circular path. Also, find the area of the path?

Find the product, using suitable properties:
$26\times (-48)+(-48)\times (-36)$

Question 79

State whether the statement is True or False.

When we change the order of integers their sum remains the same.

1. 15

Using the exterior angle property, find the value of $y$ from the figure.

Identify the term and factors in the following expression

1.9 q³r² - 3.9q²r² + 5.7r³

Question 9
Meet saves Rs 4000 from her salary. If this is $10\%$ of her salary. What is her salary and also find her net spending? However, Meet wanted to buy a bike, so she started to save $30\%$ of her salary. How much is she saving now?

What should be added to $x^2+xy+y^2$ to obtain $2x^2+3xy$?

Question 16

The perimeter of the rectangle whose length is 60 cm and a diagonal is 61 cm is

a) 120 cm
b) 122 cm
c) 71 cm
d) 142 cm

If A = $\frac{6}{7}$ and B = $\frac{7}{6}$.
Among A and B, which one is greater?

In the given diagram, $\angle$O^|OB and $\angle$OO^|Q are called ________.

Find the value of a + b, if a$x^2$ + bx + c = $(2x-1{)}^2$ is an identity.