Wei required $2280$2280 after 1111 weeks to buy a watch. He saved $110$110 in the first week and increased his weekly savings by $10$10 every week. Find whether he will be able to buy a watch after 1111 weeks.
A vertical stick which is 33cm33cm long casts a 30cm30cm long shadow on the ground. At the same time, a vertical tower casts a 50m50m long shadow on the ground. Find the height of the tower.
Tony drew the following figure in his mathematics notebook. In which ABAB and BCBC are co-initial tangents drawn from an external point AA to the circle OBOB and OCOC are the radii of the circle. Then what is always true ??
To warn ships for underwater rocks, a lighthouse throws a red colored light over a sector of angle 90∘90∘ to a distance of 4.9km4.9km. Find the area of the sea over which the ships are warned. (( Use π=227)π=227)
A drinking glass is in the shape of a frustum of a cone of height 20cm20cm. The diameters of its two circular ends are 13cm13cm and 10cm10cm. Find the capacity of the drinking glass.(Use π=227π=227)
In this diagram, the triangle represents women, the square represents accountants and the circle represents employed. Find the number of women who are accountants and employed.