Ramkali would need 1800 for admission fee and books etc, for her daugh

1.	Ramkali would need 1800 for admission fee and books etc, for her daughter to start
Answer» Since, the difference between the savings of two consecutive months is Rs.\xa020,\xa0therefore the series is an A.P.Here, the savings of the first month is Rs. 50First term, a = 50, Common difference, d = 20No. of terms = no. of monthsNo. of terms, n = 12{tex}S _ { n } = \\frac { n } { 2 } [ 2 a + ( n - 1 ) d ]{/tex}{tex}= \\frac { 12 } { 2 } [ 2 \\times 50 + ( 12 - 1 ) 20 ]{/tex}= 6[100 + 220]= 6(320)= 1920After a year,\xa0Ramakali\xa0will save Rs. 1920.Yes,\xa0Ramakali\xa0will be able to fulfill her dream of sending her daughter to school.

Discussion