of them were green balls, 
of them were red balls, 15 were black balls and the remaining 48 were yellow balls. How many balls were in the bag?
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Ans 4:
Class : Class 6
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Ans 1: (Master Answer)
Class : Class 1
The correct answer is B.
19-6+2=28+?-15
Let the missing number be x.
Then ,19 - 6 + 2 = 28 + x - 15
=> x = 19 - 6 + 2 - 28 + 15 = (19 + 2 + 15) - (6 + 28) = 36 - 34 = 2
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Ans 1: (Master Answer)
Class : Class 1
The correct answer is B.
There is no pair in the alternate digits starting from 6.
Answer-(b) Two
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Ans 2: (Master Answer)
Class : Class 1
The correct answer is C.
The line segment joining a vertex of a triangle to the midpoint of its opposite side is called a median of the triangle.
The perpendicular line segment from a vertex of a triangle to its opposite side is called an altitude of the triangle.
A triangle has three altitudes and three medians.
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Ans 1: (Master Answer)
Class : Class 1
The correct anser is D.
Circumference = 24πm, Width of track= 2 m
As we know that circumference = 2πr
Therefore, 2πr = 24π
r = 12m
Now, Radius of outer circle = Radius of inner circle + Width of the track = 12 m + 2 m = 14 m
Again, Circumference of outer circle = 2πR = 2 X 3.14 X 14 = 88 m
Hence, the quantity of wire required to surround the path completely is 88 m.