Question
Monthly income of P is Rs.15000 and his monthly savings
is Rs.9600. If his monthly income is decreased by 35% and monthly expenditure is decreased by 25% then find the approximate percentage decrease in his monthly savings.Solution
Expenditure of P = Rs. (15000 – 9600) = Rs.5400 New Saving = (0.65 × 15000 - 0.75 × 5400) = 9750 - 4050 = Rs.5700 Decrease % in Saving = [(9600 - 5700)/9600] × 100 = 41%
Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 126Ëš , then the measure of angle P is:
The circumference of a circle is 77 cm and the length of the rectangle is 4 times the radius of the circle. Find the area (in cm2) of the rec...
Find the minimum length of a rubber band which can tie three circular pipe of radius 21 cm?
- A cone has a radius of 18 cm and its curved surface area is 1980 cm². Find its height.
Angle bisectors of Q and R meet at point S, inside the triangle PQR. If angle QSR = 120Ëš , then the measure of angle P is:
If the volume of a cylinder is 144π and the ratio of radius to its height is 3:2 then find the curved surface area of cylinder?
The diameter and the slant height of a conical tent are 16 m and 5.6 m, respectively. What length of cloth having width 4m is needed to make the tent?
In a triangle, the lengths of the sides are proportional to 4, 3, and 5. If the area of this triangle is 216 square centimeters, determine the triangle'...
The sum of the radii of spheres A and B is 14 cm. the radius of A being larger than that of B. The difference between their surface areas is 112π. Wh...
- A rod of length of 616 cm and 35cm radius is melted and converted into a sphere of radius 21cm, find how many such proper spheres can be made?