Q121
Open questionThe area of a rhombus with side 13 cm and one diagonal 10 cm will be :
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Q122
Open questionThe length of a rectangular blackboard is 8 m more than its breadth. If its length is increased by 7 m and its breadth is decreased by 4 m, its area remains unchanged. The length and breadth of the rectangular blackboard is :
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Q123
Open questionA rectangular lawn 80 metres by 60 metres has two roads each 10 m wide running in the middle of it, one parallel to the length and the other parallel to the breadth. Find the cost of gravelling them at Rs. 30 per square metre.
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Q124
Open questionThree plots having areas 110, 130 and 190 square metres are to be subdivided into flower beds of equal size. If the breadth of a bed is 2 metres, the maximum length of a bed van be :
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Q125
Open questionIf the sides of a square be double find the increase of percentage in area :
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Q126
Open questionA hall, whose length is 16 m and the breadth is twice its height, takes 168 m of paper with 2 m as its width to cover its four walls. The area of the floor is :
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Q127
Open questionIn a triangle ABC, a line XY is drawn parallel to BC meeting AB in X and AC in Y. The area of the triangle AXY is half of the area of the triangle ABC. XY divides AB in the ratio of :
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Q128
Open questionIf an equilateral triangle of area X and a square of area Y have the same perimeter, then X is :
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Q129
Open questionA hall 50 m long and 45 m broad is to be paved with square tiles. Find the largest tile as well as its number in the given options so that the tiles exactly fit in the hall :
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Q130
Open questionA rectangular farm has to be fenced on one long side, one short side and the diagonal. If the cost of fencing is Rs. 100 per m, the area of the farm is 1200 m2 and the short side is 30 m long, how much would the job cost ?
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Q131
Open questionABCD is a rectangle and E and F are the mid-points of AD and DC respectively. Then the ratio of the areas of EDF and AEFC would be :
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Q132
Open questionA circular pond has area equal to 616 m2. A circular stage is made at the centre of the pond whose radius is equal to half the radius of the pond. What is the area where water is present ?
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Q133
Open questionWheels of diameters 7 cm and 14 cm start rolling simultaneously from X and Y, which are 1980 cm apart, towards each other in opposite directions. Both of them make the same number of revolutions per second. If both of them meet after 10 seconds, the speed of the smaller wheel is :
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Q134
Open questionThe area of a circle is increased by 22 sq. cm if its radius is increased by 1 cm. The original radius of the circle is :
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Q135
Open questionA circle is circumscribed around a square as shown in the figure. The area of one of the four shaded portions is equal to . The radius of the circle is :
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Q136
Open questionIf the circumference of a circle is increased by 20%, what will be the effect on the circle ?
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Q137
Open questionThe ratio of circumference and diameter of a circle is 22 : 7. If the circumference be m, then the radius of the circle is :
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Q138
Open questionThe perimeter of a square and a regular hexagon are equal. The ratio of the area of the hexagon to the area of the square is :
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Q139
Open questionThe perimeter of a rectangular field is 480 metres and the ratio between the length and the breadth is 5 : 3. The area is :
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Q140
Open questionThe area of a grassy plot is 480 sq. m. If each side had been 5 m longer, the area would have been increased by 245 sq. m. Find the length of the fence to surround it.
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