Question

Saroj'a collection of stamps is 25% more than that of Sarita.How much percent is Sarita's collection less that SAroja's collection

Answer 1

If sarita has 100, then saroja has 25% more or 125. Since 100/125 is .8 or 80%, sarita has 20% less than saroja.
1.25 and .8 are reciprocals, as 1.25 * .8 = 1. and 80% of 125% = 100%