Mathematics MCQs — Test 38
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Question 1
The circumferences of two concentric circles are 176 m and 132 cm respectively. What is the difference between their radii?
Question 2
The length of a rope by which a cow must be tethered in order that she may be able to graze an area of 9856 sq.m is:________?
Question 3
In a rhombus whose area is 144 sq.cm on of its diagonals is twice as long as the other. The lengths of its diagonals are:_________?
Question 4
If the radius of a circle be reduced by 50% its area is reduced by:_________?
Question 5
If the diameter of a circle is increased by 100 % its area is increased by:_________?
Question 6
A circular wire of radius 42 cm is cut and bent in the form of a rectangle whose sides are in the ration of 6:5 The smaller side if the rectangle is:_________?
Question 7
The number of rounds that a wheel of diameter 7/11 m will make in going 4 km is:_________?
Question 8
A rectangle has 15 cm as its length and 159 cm2 as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:_________?
Question 9
The length of a rectangle is twice its breadth, if length is decreased by 5 cm and the breadth is increased by 5 cm. The length of the rectangle is_________?
Question 10
If the base of rectangle is increased by 10 % and the area is unchanged then the corresponding altitude must be decreased by:________?