The airmail rates of two countries are shown below.
Devika sent a parcel weighing 32 kg to India and a parcel weighing 28 kg to Australia by airmail. How much did she pay altogether?
Here the parcel sent= 32kg=20+12 For the first 20kg they charge for India is 42.40 The rest 12 kg can be split as 10kg+ 2kg For every additional 10kg and part thereof charged amount is 10.50 So,the total amount charged by India is 42.40+10.50+10.50=63.40 In the same manner the parcel for Australia is about 28 kg For the first 20kg they charged 35.12 The rest 8 kg is charged 9.80 Rs Because it is told that for additional 10kg and part thereof they have charged 9.80 Rupees So total 28kg= 20 kg + 8kg The charged amount is 35.12+9.80=44.92 Total amount devika paid altogether is 63.90 + 44.92 = 108.32
Mila draws a rectangle on a piece of paper. The length of the rectangle is 76 cm and its width (or breadth) is 55 cm. Mila now wants to run a piece of string all around the rectangle's sides such that the string goes over all sides of the rectangle once and ONLY once. How long (in cm) does the string need to be?