The population of a village decerases at the rate of 20% per annum. If is population 2 years ago was 10000 the present polulation is:(एक गांव की जनशंख्या 20 % वार्षिक की दर से घटती है। यदि 2 वर्ष पूर्व गांव की जनशंख्या 10000 थी , तो अब क्या होगी )

The present population of a town is 1280000. If it increases at the rate of 6(2)/3% per annum, its population two years ago was :

The population of a village increases at the rate of 16% per annum. If the present population of the village is 403680, then what was the population of the village 2 years ago?

The population of a town increases at the rate of 15% per annum. If the present population is 108445 of town, then what was the population 2 years ago?

The value of a machine depreciates at the rate of 20% per annum. It was purchased 2 years ago. If its present value is Rs 40000, for hoe much was it purchased?

The population of a town 2 years ago was 62500. Due to migration to cities it decreases every year at the rate of 4% per annum. Find its present population.

Rs20000 is invested on compound interest (compounded half yearly) at the rate of 20% per annum, then what will be the interest after two years? 20000 रुपये की राशि 20% प्रति वर्ष की दर से चक्रवृद्धि ब्याज (अर्धवार्षिक रूप से संयोजित ) पर निवेश की गयी है | दो वर्षों के बाद ब्याज कितना होगा ?