Two tankers contain 531 litres and 243 litres of petrol respectively. A container with maximum capacity is used which can measure the petrol of either tanker in exact number of litres. How many containers of petrol are there in the first tanker.
A vertical stick which is ^@ 27 \space cm^@ long casts a ^@24 \space cm^@ long shadow on the ground. At the same time, a vertical tower casts a ^@50 \space m^@ long shadow on the ground. Find the height of the tower.
A toffee is in the shape of a cylinder with two hemispheres stuck to each of its ends. The length of the entire toffee is 24 mm and the diameter of the toffee is 22 mm then choose its correct surface area .