Mathematics MCQs

Page No. 17

A rectangular field has dimensions 25m by 15m. Two mutually perpendicular passage of 2m width have been left in it’s central part and grass has been grown in rest of the field. The area under the grass is____________?


a295m2


b299m2


c300m2


d375m2


View Answer 299m2

The perimeter of a rectangle is 60m. If it’s length is twice its breadth then its area is__________?


a160m2


b180m2


c200m2


d220m2


View Answer 200m2

The area of a rectangle is 12 sq.metres and it’s length is 3 times that of it’s breadth. What is the perimeter of the rectangle?


a14m


b18m


c4m


dNone of these


View Answer None of these

The largest size of bamboo that can be placed in a square of area 100 sq.meters is__________?


a10m


b14.14m


c20m


d25m


View Answer 14.14m

The diagonal of a square is 4√2cm. The diagonal is another square whose area is double that of the first square is__________?


a8cm


b8√2cm


c16cm


d4√2cm


View Answer 8cm

The perimeter of a rectangle and square are 160m each. The area of the rectangle is less than that it’s square by 100cm meters. The less than that of the square by 100 sq.meters. the length of rectangle is___________?


a30m


b40m


c50m


d60m


View Answer 50m

The length of a rectangular plot is twice its breadth. If the area of the rectangular plot is 6075 sq.meters .what is its length?


a45m


b75m


c135m


dNone of these


View Answer 135m

The length of a rectangular plot is increased by 25%. To keep it’s area uncharged the width of the plot should be___________?


aKept unchanged


bIncreased by 25%


cIncreased by 20%


dReduced by 20%


View Answer Reduced by 20%

If the length and width of a rectangular grand are each increased by 20% then what would be the percent increase in the area of the garden?


a20%


b24%


c36%


d44%


View Answer 44%

If the length of a rectangle is increased by 20% and it’s breadth is decreased by 20% then it area________?


aIncreased by 4%


bdecreased by 4%


cDecreased by 1%


dRemains unchanged


View Answer decreased by 4%

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