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8051.

The value of expression (1.4)2×(0.5)2 is _____ .

Answer» The value of expression (1.4)2×(0.5)2 is _____ .
8052.

Match the following inequalities with their solutions.

Answer»

Match the following inequalities with their solutions.

8053.

Match each of the entries in Column I with the appropriate entries in Column II. Column I Column II 100% C. Rs. 53

Answer»

Match each of the entries in Column I with the appropriate entries in Column II.
Column I Column II 100% C. Rs. 53

8054.

Find : 25% of 8 + 50% of 10

Answer» Find : 25% of 8 + 50% of 10
8055.

Aditya has a certain number of pencils that cost Rs 3 per piece. The cost of one pencil is 10 greater than 4 times the number of pencils which Aditya has is Rs 162. Frame the equation and find the number of pencils. [4 MARKS]

Answer» Aditya has a certain number of pencils that cost Rs 3 per piece. The cost of one pencil is 10 greater than 4 times the number of pencils which Aditya has is Rs 162. Frame the equation and find the number of pencils. [4 MARKS]
8056.

What will be the sum of the digits of the difference between the greatest five digit even number and the smallest four digit odd number?

Answer»

What will be the sum of the digits of the difference between the greatest five digit even number and the smallest four digit odd number?

8057.

Let A = {1, 2, 3, 4, 5, 6} and B = {2, 4, 6, 8}. Find A - B and B - A.

Answer»

Let A = {1, 2, 3, 4, 5, 6} and B = {2, 4, 6, 8}. Find A - B and B - A.



8058.

Question 39Fill in the blanks to make the statements true.The digit at the one's place of 572 is ___

Answer»

Question 39



Fill in the blanks to make the statements true.



The digit at the one's place of 572 is ___



8059.

Ray PQ and ray PR are perpendicular to each other. Points B and A are in the interior and exterior of ∠QPR respectively. Ray PB and ray PA are perpendicular to each other. Draw a figure showing all these rays and write -(i) A pair of complementary angles (ii) A pair of supplementary angles. (iii) A pair of congruent angles.

Answer»
Ray PQ and ray PR are perpendicular to each other. Points B and A are in the interior and exterior of QPR respectively. Ray PB and ray PA are perpendicular to each other. Draw a figure showing all these rays and write -




(i) A pair of complementary angles (ii) A pair of supplementary angles. (iii) A pair of congruent angles.
8060.

On 1st March, 2019, Shri Kailash Chand, Lucknow commenced business with cash ₹ 50,000. The following are his transactions for the month of March, 2019. Record them in proper books, post them to the Ledger and take out a Trial Balance: 2019 ₹​ March 1 Bought goods for cash* 5,000 Purchased from Hari, Lucknow*: 5 Laptops ₹ 35,000 each 5 Desktops ₹ 25,000 each Less: Trade Discount 15% March 2 Purchased computer & printer from M/s. Computer Mart against cash for office use* 20,000 March 5 Deposited into bank 15,000 March 7 Sold goods to Shri Ramesh Chand, Kanpur*: 2 Laptops ₹ 32,000 each 2 Desktops ₹ 24,000 each March 10 Received Cheque from Shri Ramesh Chand on account 75,000 March 14 Received another Cheque in full settlement from Ramesh Chand 49,440 March 15 Sold goods to Jagdish, Kolkata**: 2 Laptops ₹ 35,000 each 2 Desktops ₹ 25,000 each Less: Trade Discount 5% March 18 Bought from Shyam Lal, Delhi**: 10 Keyboards ₹ 1,000 each 10 Mouse ₹ 500 each March 20 Drew cash from bank for office 17,000 March 21 Paid to Shyam Lal in full settlement 16,500 March 23 Cash Sales 5 Keyboards ₹ 1,200 each and 5 Mouse ₹ 600 each* March 25 Paid Salary 2,500 March 28 Paid Rent* 1,500 March 30 Paid into bank 5,000 March 31 Drew cash for personal expenses 500 ​ ​Transactions marked with (*) are intra-state transactions subject to CGST and SGST 6% each.Transactions marked with (**) are inter-state transactions subject to IGST 12%.

Answer» On 1st March, 2019, Shri Kailash Chand, Lucknow commenced business with cash ₹ 50,000. The following are his transactions for the month of March, 2019. Record them in proper books, post them to the Ledger and take out a Trial Balance:
















































































































































































2019 ₹​
March 1 Bought goods for cash* 5,000
Purchased from Hari, Lucknow*:
5 Laptops ₹ 35,000 each
5 Desktops ₹ 25,000 each
Less: Trade Discount 15%
March 2 Purchased computer & printer from M/s. Computer Mart against cash for office use* 20,000
March 5 Deposited into bank 15,000
March 7 Sold goods to Shri Ramesh Chand, Kanpur*:

2 Laptops ₹ 32,000 each




2 Desktops ₹ 24,000 each
March 10

Received Cheque from Shri Ramesh Chand on account



75,000

March 14 Received another Cheque in full settlement from Ramesh Chand 49,440
March 15 Sold goods to Jagdish, Kolkata**:
2 Laptops ₹ 35,000 each
2 Desktops ₹ 25,000 each
Less: Trade Discount 5%
March 18

Bought from Shyam Lal, Delhi**:




10 Keyboards ₹ 1,000 each
10 Mouse ₹ 500 each
March 20

Drew cash from bank for office





17,000

March 21 Paid to Shyam Lal in full settlement 16,500
March 23 Cash Sales 5 Keyboards ₹ 1,200 each and 5 Mouse ₹ 600 each*
March 25 Paid Salary 2,500
March 28 Paid Rent* 1,500
March 30 Paid into bank 5,000
March 31 Drew cash for personal expenses 500







​ ​

Transactions marked with (*) are intra-state transactions subject to CGST and SGST 6% each.

Transactions marked with (**) are inter-state transactions subject to IGST 12%.
8061.

Find ∠A in the figure given below.

Answer» Find A in the figure given below.


8062.

A fruit grower has 150 acres of land available to raise two crops, A and B. It takes one day to trim an acre of crop A and two days to trim an acre of crop B and there are 240 days per year available for trimming. It takes 0.3 day to pick an acre of crop A and 0.1 day to pick an acre of crop B and there are 30 days per year available for picking. The number of acres of each fruit that should be planted to maximize profit, assuming that the profit is 140 per acre for crop A and 235 per acre for crop B, is

Answer»

A fruit grower has 150 acres of land available to raise two crops, A and B. It takes one day to trim an acre of crop A and two days to trim an acre of crop B and there are 240 days per year available for trimming. It takes 0.3 day to pick an acre of crop A and 0.1 day to pick an acre of crop B and there are 30 days per year available for picking. The number of acres of each fruit that should be planted to maximize profit, assuming that the profit is 140 per acre for crop A and 235 per acre for crop B, is

8063.

In the given figure, if AB || CD, then find the value of x.​

Answer»

In the given figure, if AB || CD, then find the value of x.






8064.

Question 16In the given figure, PQ⊥RQ, PQ = 5 cm and QR = 5 cm. Then, △PQR is a) a right-angled triangle but not isosceles b) an isosceles right-angled triangle c) isosceles but not a right-angled triangled) neither isosceles nor right-angled triangle

Answer»

Question 16

In the given figure, PQRQ, PQ = 5 cm and QR = 5 cm. Then, PQR is







a) a right-angled triangle but not isosceles

b) an isosceles right-angled triangle

c) isosceles but not a right-angled triangle

d) neither isosceles nor right-angled triangle



8065.

Circumcentre of triangle is ____________ of a triangle.

Answer»

Circumcentre of triangle is ____________ of a triangle.

8066.

△ABC is drawn with the length of side AB being 6.5 cm. If ∠A is 20∘ and ∠C is 130∘, then the length of the side AC is

Answer»

ABC is drawn with the length of side AB being 6.5 cm. If A is 20 and C is 130, then the length of the side AC is


8067.

A college survey found that 6 out of 24 students walk to college. If 3 students are selected at random without replacement, what is the probability that all 3 walk to college?

Answer»

A college survey found that 6 out of 24 students walk to college. If 3 students are selected at random without replacement, what is the probability that all 3 walk to college?

8068.

Ramkali would need ₹1800 for admission fee and books etc., for her daughter to start going to school from next year. She saved ₹50 in the first month of this year and increased her monthly saving by ₹20. After a year, how much money will she save? Will she be able to fulfil her dream of sending her daughter to school?

Answer» Ramkali would need ₹1800 for admission fee and books etc., for her daughter to start going to school from next year. She saved ₹50 in the first month of this year and increased her monthly saving by ₹20. After a year, how much money will she save? Will she be able to fulfil her dream of sending her daughter to school?
8069.

a tower PM subtends angles α, 2α, and 3α at A,B and C respectively on ground on one side of the tower, AB=200 m, BC= 100 m. find height of the tower??

Answer» a tower PM subtends angles α, 2α, and 3α at A,B and C respectively on ground on one side of the tower, AB=200 m, BC= 100 m. find height of the tower??
8070.

If we take a regular hexagon ABCDEF and join AD, taking AB=p(vector) and BC=q(vector) then find CD? (using polygonal law of vector)

Answer» If we take a regular hexagon ABCDEF and join AD, taking AB=p(vector) and BC=q(vector) then find CD?
(using polygonal law of vector)
8071.

Question 2 In the figure given below, ΔODC∼ΔOBA,∠BOC=125∘and ∠CDO=70∘ Find∠DOC,∠DCO and ∠OAB.

Answer»

Question 2
In the figure given below,
ΔODCΔOBA,BOC=125and CDO=70
FindDOC,DCO and OAB.

8072.

Seeing the pattern shown below, what is the value of 1,11,111 × 1,11,111 ?12345654321

Answer» Seeing the pattern shown below, what is the value of 1,11,111 × 1,11,111 ?


  1. 12345654321
8073.

To represent a rational number 35 on a number line, you need to divide 1 unit on a number line into equal parts.

Answer»

To represent a rational number 35 on a number line, you need to divide 1 unit on a number line into equal parts.

8074.

The theoretical capacity of a traffic lane with one way traffic flow at a stream speed of 60 kmph will be ________ veh/hr/lane. Assume, reaction time = 0.7 seconds and length of vehicle as 6 m.3396

Answer» The theoretical capacity of a traffic lane with one way traffic flow at a stream speed of 60 kmph will be ________ veh/hr/lane. Assume, reaction time = 0.7 seconds and length of vehicle as 6 m.
  1. 3396
8075.

Find the mean salary of 60 workers of a factory from the following table:Salary (in Rs)Number of workers30001640001250001060008700068000490003100001Total60

Answer» Find the mean salary of 60 workers of a factory from the following table:

Salary (in Rs)Number of workers30001640001250001060008700068000490003100001Total60
8076.

If 27x =93x, find x.

Answer» If 27x =93x, find x.
8077.

Garbage is placed in a triangular shape as shown in the image below. Find the area of the garbage.

Answer»

Garbage is placed in a triangular shape as shown in the image below. Find the area of the garbage.




8078.

ntwhat is meant by 1g equivalentn ntn

Answer» ntwhat is meant by 1g equivalentn ntn
8079.

Question 83In the following question, state whether the given statements are true (T) or false (F).am=1a−m

Answer»

Question 83



In the following question, state whether the given statements are true (T) or false (F).



am=1am



8080.

Question 8 In countries like USA and Canada, the temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a linear equation that converts Fahrenheit to Celsius: F=95C+32 (i) Draw the graph of the linear equation above using Celsius for x-axis and Fahrenheit for the y-axis. (ii) If the temperature is 30∘C, what is the temperature in Fahrenheit? (iii) If the temperature is 95∘F, what is the temperature in Celsius? (iv) If the temperature is 0∘C, what is the temperature in Fahrenheit and if the temperature is 0∘F, what is the temperature in Celsius? (v) Is there a temperature which is numerically the same in both Fahrenheit and Celsius? If yes, find it.

Answer» Question 8
In countries like USA and Canada, the temperature is measured in Fahrenheit, whereas in countries like India, it is measured in Celsius. Here is a linear equation that converts Fahrenheit to Celsius:
F=95C+32
(i) Draw the graph of the linear equation above using Celsius for x-axis and Fahrenheit for the y-axis.
(ii) If the temperature is 30C, what is the temperature in Fahrenheit?
(iii) If the temperature is 95F, what is the temperature in Celsius?
(iv) If the temperature is 0C, what is the temperature in Fahrenheit and if the temperature is 0F, what is the temperature in Celsius?
(v) Is there a temperature which is numerically the same in both Fahrenheit and Celsius? If yes, find it.
8081.

If two ratios are in proportion then how are they represented symbolically?

Answer»

If two ratios are in proportion then how are they represented symbolically?



8082.

Which of the following is not a like term of 2x2yz?

Answer»

Which of the following is not a like term of 2x2yz?



8083.

Express 5126000 in standard form.

Answer»

Express 5126000 in standard form.



8084.

Question 1(a)There are 20 girls and 15 boys in a class.What is the ratio of numbers of girls to the number of boys?

Answer»

Question 1(a)



There are 20 girls and 15 boys in a class.



What is the ratio of numbers of girls to the number of boys?



8085.

Question 52 State whether the given statement is True or False. If pq is a rational number and m is a non-zero common divisor of p and q, then pq=p÷mq÷m.

Answer»

Question 52

State whether the given statement is True or False.

If pq is a rational number and m is a non-zero common divisor of p and q, then pq=p÷mq÷m.

8086.

Let A(2,−3) and B(−2,1) be vertices of a triangle ABC. If the centroid of this triangle moves on the line 2x+3y=1, then the locus of vertex C is

Answer»

Let A(2,3) and B(2,1) be vertices of a triangle ABC. If the centroid of this triangle moves on the line 2x+3y=1, then the locus of vertex C is

8087.

Question 10In figure , ABCD and AEFG are two parallelograms. If ∠C=55∘, then determine ∠F.

Answer» Question 10

In figure , ABCD and AEFG are two parallelograms. If C=55, then determine F.


8088.

Question 2(v)Simplify and express the result in power notation with positive exponent:2−3×(−7)−3

Answer»

Question 2(v)

Simplify and express the result in power notation with positive exponent:



23×(7)3



8089.

Question 4 (vii)Find the square roots of the following numbers by the Prime Factorization method:5929

Answer»

Question 4 (vii)



Find the square roots of the following numbers by the Prime Factorization method:

5929



8090.

In triangle ABC, DE is parallel to BC; where D and E are the points on AB and AC respectively. Also, if AD = 12 cm, BD = 24 cm and BC = 8 cm, then find the length of DE.

Answer» In triangle ABC, DE is parallel to BC; where D and E are the points on AB and AC respectively. Also, if AD = 12 cm, BD = 24 cm and BC = 8 cm, then find the length of DE.
8091.

Find the product using the formula.

Answer»

Find the product using the formula.



8092.

Write four equivalent fractions of 49.

Answer» Write four equivalent fractions of 49.
8093.

Add the following:a(a+b),b(b+c),c(a+c) and a2+b2+c2

Answer» Add the following:



a(a+b),b(b+c),c(a+c) and a2+b2+c2
8094.

The maximum and minimum temperatures of five Indian cities are given in °C. Draw a joint bar graph for this data. Temperature City. Delhi Mumbai Kolkata Nagpur Kapurthala Maximum temperature 35 32 37 41 37 Minimum temperature 26 25 26 29 26

Answer» The maximum and minimum temperatures of five Indian cities are given in °C. Draw a joint bar graph for this data.




























Temperature City. Delhi Mumbai Kolkata Nagpur Kapurthala
Maximum temperature 35 32 37 41 37
Minimum temperature 26 25 26 29 26
8095.

The scores in mathematics test (out of 25) of students is as follows:19, 25, 23, 20, 9, 20, 15, 10, 5, 16, 25, 20, 24, 12, 20Find the mode and median of this data. Are they same?

Answer» The scores in mathematics test (out of 25) of students is as follows:

19, 25, 23, 20, 9, 20, 15, 10, 5, 16, 25, 20, 24, 12, 20

Find the mode and median of this data. Are they same?
8096.

ABC is a triangle in which angle B = 2times angle C. D is point on BC such that As bisect angle BAC and AB=CD. Prove that angle BAC=72degree

Answer» ABC is a triangle in which angle B = 2times angle C. D is point on BC such that As bisect angle BAC and AB=CD. Prove that angle BAC=72degree
8097.

Construct triangles of the measures given below.In ∆XYZ, l(XY) = 7.3 cm, m∠X = 34°, m∠Y = 95°

Answer» Construct triangles of the measures given below.
In ∆XYZ, l(XY) = 7.3 cm, m∠X = 34°, m∠Y = 95°
8098.

If the square of the number A5 is X25, then X is equal to .

Answer»

If the square of the number A5 is X25, then X is equal to .

8099.

Find: 1.07 × 0.02

Answer» Find: 1.07 × 0.02
8100.

If we divide 1250 by 25, then 1250 is the ____.

Answer»

If we divide 1250 by 25, then 1250 is the ____.