2 .The perimeter of a rectangle and a square
are 120 m each. The area of the rectangle
is less than that of the area of square by
100 square mtr. The length of the rectangle is â€“
4 .The volume of a solid hemispherical object
is 10472 $cm^3$
. Its total surface area is â€“
A. 2757.008 $cm^2$
5 .ABCD is a rhombus whose three vertices A,
D and C lie on a circle while the 4th
B lies on its centre. If the area of rhombus
is $8\sqrt3$ $cm^2$
. Find the radius of the circle
7 .Due to a sudden marriage, the f amily
incurs miscellaneous expenditure of ` 2650
in total. How much is the increase in the
amount under this head from the estimated
8 .If the family actually paid ` 9678 on grocery.
What is the difference between the actual
expense & the estimated budget?
9 .What is the dif ference in the amount
estimated by the family on electricity and
10 .The family saved ` 2400 on their electricity bill.
What is the new percentage of electricity
bill amount of the total salary?