Mathematics MCQs

Page No. 22

The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?


a25% increase


b50% increase


c50% decrease


d75% decrease


View Answer 50% increase

The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ 26.50 per metre is Rs. 5300, what is the length of the plot in metres?


a40


b50


c120


dNone of These


View Answer None of These

A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?


a34


b40


c68


d88


View Answer 88

Bilal’s room has a floor of 8m by 4m. He decides to tile the floor with tiles of 25cm x 20 cm. How many tiles will he need?


a320 tiles


b640 tiles


c160 tiles


d6.4 tiles


View Answer 640 tiles

The area of a triangle is with base 4m and height 5m?


a20 sq m


b10 sq m


c5 sq m


d3 sq m


View Answer 10 sq m

The area of a triangle will be when a = 1m, b = 2m, c = 3m, a, b, c being lengths of respective sides.


a0 sq m


b3 sq m


c2 sq m


d6 sq m


View Answer 0 sq m

The length of each side of an equilateral triangle having an area of 4√3 cm<sup>2</sup> is_______?


a4/3 cm


b3/4 cm


c3 cm


d4 cm


View Answer 4 cm

The altitude of an equilateral triangle of side 2√3 cm is_________?


a3/2 cm


b1/2 cm


c3/4 cm


d3 cm


View Answer 3 cm

The base of a right triangle is 8 and hypotenuse is 10. Its area is________?


a12


b80


c59


d24


View Answer 12

What is the area of square field whose side of length 15 m?


a225 sq m


b220 sq m


c100 sq m


d30 sq m


View Answer 225 sq m

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