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By travelling at a speed of 48 kilometres per hour, a car can finish a certain journey in 10 hours. To cover the same distance in 8 hours, the speed of the car should
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#mcq
0
votes
0
answers
If the distance travelled by a rickshaw in one hour is 10 km, then the distance travelled by the same rickshaw with the same speed in one minute
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#mcq
0
votes
0
answers
On increasing a, b increases in such a manner that `b/a` remains______ and positive, then a and b are said to vary directly with each
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#fib
0
votes
0
answers
In case of inverse proportion, `(a_2)/−
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#fib
0
votes
0
answers
Devangi travels 50 m distance in 75 steps, then the distance travelled in 375 steps is _______
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#fib
0
votes
0
answers
Length of a side of an equilateral triangle and its perimeter vary inversely with each
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#tnf
0
votes
0
answers
The area of cultivated land and the crop harvested is a case of direct
asked
Jan 17, 2022
in
8th-maths
marks1
chapter13
#tnf
0
votes
0
answers
If x varies inversely as y and x = 20 when y = 600, find y when x =
asked
Jan 17, 2022
in
8th-maths
marks2
chapter13
#sub
0
votes
0
answers
From the following table, determine if x and y are in direct proportion or not. x 3 6 15 20 30 y 12 24 45 60 120
asked
Jan 17, 2022
in
8th-maths
marks2
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 17, 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 17, 2022
in
8th-maths
marks3
chapter13
#sub
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 17, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
The dimensions of a godown are 40 m, 25 m and 10 m. If it is filled with cuboidal boxes each of dimensions `2 m xx 1.25 m xx 1 m`, then the number of boxes will
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
The figure ABCD is a quadrilateral in which AB = CD and BC = AD. Its area is
asked
Jan 17, 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 17, 2022
in
8th-maths
marks1
chapter11
#mcq
0
votes
0
answers
The surface area of a cuboid formed by joining two cubes of side a face to face is
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
If the diagonal d of a quadrilateral is doubled and the heights `(h_1)` and `(h_2)` falling on d are halved, then the area of quadrilateral is
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
__________ surface area of room = area of 4
asked
Jan 17, 2022
in
8th-maths
marks1
chapter11
#fib
0
votes
0
answers
The area of a trapezium with equal non-parallel sides is 168 `m^2`. If the lengths of the parallel sides are 36 m and 20 m, find the length of the non-parallel
asked
Jan 17, 2022
in
8th-maths
marks2
chapter11
#sub
0
votes
0
answers
The areas of two circles are in the ratio 49:64. Find the ratio of their
asked
Jan 17, 2022
in
8th-maths
marks2
chapter11
#sub
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