Emma saved ₹13 each day for a year starting from 1st January. How much did she save by the end of January?
Number of days in January = 31 Amount saved per day = ₹13 Total savings in January = ₹(13 x 31) = ₹403
If we start observing earth from 1st January 2001, then how many revolutions has the earth made until 1st January 2005?