Mathematics MCQs

Page No. 21

A tank is 7m long and 4m wide at what speed should water run through pipes 5cm broad and 4cm deep so that in 6 hours and 18 minutes, the water level in the tank rises by 4.5cm?


a12km/hr


b10km/hr


c14km/hr


dNone of these


View Answer 10km/hr

An agricultural field is in the form of a rectangle of length 20m and width 14m. A pit 6m long 3m wide and 2.5m deep is dug in a corner of the field and earth taken out of the pit is spread uniformly over. The remaining area of the field. The level of the field has raised by________?


a15.16cm


b16.17cm


c17.18cm


d18.19m


View Answer 17.18cm

A rectangular tank measuring (5m x 4.5m x 2.1m) is dug in the center of the field measuring 13.5m x 2.5m. The earth dug out is speed every over the remaining portion of the field raised?


a4m


b4.1cm


c4.2cm


d4.3m


View Answer 4.2cm

A plot of land in the form of a rectangle has dimensions 240m x 180m. A draint 10m wide is dug all around it on the outside and the earth dug out is evenly spread over the plot increasing its surface level by 25cm. The depth of the drailent of


a1.227m


b1.225m


c1.233m


d1.229m


View Answer 1.227m

A hall is a 15m long and 12m board. If the sum of the areas of the floor and the ceiling is equal to the areas of the 4 walls the volume of the hall is:


a720 Cu.m


b1200 Cu.m


c361 Sq.cm


dNone of these


View Answer 1200 Cu.m

The sum of the length breadth and depth of cuboid is 19cm and it’s diagonal is 5√5 cm it’s surface area is_________?


a125 Sq.cm


b236 Sq.cm


c361 Sq.cm


dNone of these


View Answer 236 Sq.cm

The product of the area of three adjacent faces of a rectangular box is equal to___________?


athe volume of the box


bTwice the volume of the box


cthe square of the volume of the box


dCube root of the volume of the box



The surface area of a (10cm x 4cm x3cm) brick is__________?


a84 Sq.cm


b124 Sq.cm


c164 Sq.cm


d180 Sq.cm


View Answer 164 Sq.cm

Water flows a tank 200 x 150m through a rectangular pipe 1.5 x 1.25m at the rate at 20kmph. In what time will be water rises by 2 meters?


a76 min


b80min


c90min


d96min


View Answer 96min

The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is__________?


a1520 m2


b2420 m2


c2480 m2


d2520 m2


View Answer 2520 m2

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