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If the area occupied by 15 postal stamps is 60 cm2, then the area occupied by 120 such postal stamps will be
asked
Jan 18, 2022
in
8th-maths
marks1
chapter13
#fib
0
votes
0
answers
The area of cultivated land and the crop harvested is a case of direct
asked
Jan 18, 2022
in
8th-maths
marks1
chapter13
#tnf
0
votes
0
answers
In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the
asked
Jan 18, 2022
in
8th-maths
marks2
chapter13
#sub
0
votes
0
answers
If a deposit of Rs 2,000 earns an interest of Rs 500 in 3 years, how much interest would a deposit of Rs 36,000 earn in 3 years with the same rate of simple
asked
Jan 18, 2022
in
8th-maths
marks2
chapter13
#sub
0
votes
0
answers
The cost of 27 kg of iron is Rs 1,080, what will be the cost of 120 kg of iron of the same
asked
Jan 18, 2022
in
8th-maths
marks2
chapter13
#sub
0
votes
0
answers
Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In each of the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them. If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
A volleyball court is in a rectangular shape and its dimensions are directly proportional to the dimensions of the swimming pool given below. Find the width of the pool.
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
Pattern B consists of four tiles like pattern A. Write a proportion involving red dots and blue dots in pattern A and B. Are they in direct proportion? If yes, write the constant of proportion.
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
Kusum always forgets how to convert miles to kilometres and back again. However she remembers that her car’s speedometer shows both miles and kilometres. She knows that travelling 50 miles per hour is same as travelling 80 kilometres per hour. To cover a distance of 200 km, how many miles Kusum would have to
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
The students of Anju’s class sold posters to raise money. Anju wanted to create a ratio for finding the amount of money her class would make for different numbers of posters sold. She knew they could raise Rs 250 for every 60 posters sold. (a) How much money would Anju’s class make for selling 102 posters? (b) Could Anju’s class raise exactly Rs 2,000? If so, how many posters would they need to sell? If not,
asked
Jan 18, 2022
in
8th-maths
marks3
chapter13
#sub
0
votes
0
answers
Find the area of polygon ABCDEF, if AD = 18cm, AQ = 14 cm, AP = 12 cm, AN = 8 cm, AM = 4 cm, and FM, EP, QC and BN are perpendiculars to diagonal
asked
Jan 18, 2022
in
8th-maths
marks1
chapter11
#sub
0
votes
0
answers
If the height of a cylinder becomes `1/4` of the original height and the radius is doubled, then which of the following will be
asked
Jan 18, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
The surface area of the three coterminus faces of a cuboid are 6, 15 and 10 `cm^2` respectively. The volume of the cuboid
asked
Jan 18, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
The area of a parallelogram is 60 `cm^2` and one of its altitude is 5 cm. The length of its corresponding side
asked
Jan 18, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
Total surface area of a cylinder of radius h and height r is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
Two cylinders of equal volume have heights in the ratio 1:9. The ratio of their radii is
asked
Jan 18, 2022
in
8th-maths
marks1
chapter11
#fib
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