DASS AND BROWN WORLD SCHOOL 8TH MATHEMATICS : October 2018

Friday, 26 October 2018

Assignment no 04

Do the following questions of exercise-->10A ( Q5, Q9, Q16, Q26, Q29 and Q31 )

Date of submission:- 29.10.2018

DASS AND BROWN WORLD SCHOOL

Class VIII ASSIGNMENT NO -03 (18.10.2018)

Q1.Convert each of the following ratios into percentage:

(i)14:25 (ii) 5:6

Q2. Express 75 paise as a percentage of Rs 6.

Q3.The price of a shirt is reduced by 12% in a discount sale. If its present price is Rs 1188, find its original price.

Q4.The value of a a machine depreciates 5% every year. If the present value of the machine is Rs 100000 , what will be its value after 2 years?

Q5.The population of a town increases 8% annually. If its present population is 142560, what was it a year ago?

Q6.By selling a rickshaw for Rs 9240, Bansi loses 12%. For how much should he sell it to gain 12%?

Q7.Out of her total monthly salary. Tanvy spends 30% on house rent and 60%

of the rest on household expenditure. If she saves Rs 10500 , what is her

total monthly salary ?

Q8.A’s income is 60% more than that of B . By what percent is B’s income less

than A’s ?

Q9.Amit earns Rs 32000 per month . He spends of his income of food :

of the remainder on house rent and of the remainder on the education

of children. How much is still left with him ?

Q10.Simplify

( 4x²+5x –7) ( x–1)

Date of submission :- 22.10.2018

ASSIGNMENT NO 02

Do Q1 to Q6 "CCE TEST PAPER - 9"

Chapter - Percentage

Date of submission - 15.10.2018

ASSIGNMENT 01_06.10.2018

Q1. Mr. Narayan saves 20% of his salary .If he receives Rs 14500 per month as his salary , find his monthly expenditure . ( Ans – Rs 11600)

Q2.In an examination , 96% of the candidates passed and 50 failed. How many candidates appeared ? (Ans- 1250)

Q3.The lengths of the diagonals of a rhombus is 16 cm and 12 cm respectively . Find the length of each of its sides.

Q4.The sides of a rectangle are in the ratio 5:4 and its perimeter is 90 cm.Find its length and breadth.

Q5.Write down the number of vertices of each of the following figures

i) Cuboid ii) Square pyramid

Q6.How many faces are there in a

i) Cube ii) Tetrahedron

Date of submission :- 08.10.2018