C-13-Q083mediumsingle_mcq

The number of months Rashid takes to deposit a total of Tk. $106200$ is —

a $30$
b $36$
c $40$
d $48$

ব্যাখ্যা

Setting $S_n = 106200$ gives $50n^2 + 1150n - 106200 = 0$ , i.e. $n^2 + 23n - 2124 = 0$ . Factoring yields $n = 36$ (the positive root), so 36 monthly deposits are required.

এই অধ্যায়ের আরও প্রশ্ন

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Finite Series — সব প্রশ্ন দেখুন (160টি) →

The number of months Rashid takes to deposit a total of Tk. $106200$ is —

30

36

40

48

ব্যাখ্যা

Setting $S_n = 106200$ gives $50n^2 + 1150n - 106200 = 0$ , i.e. $n^2 + 23n - 2124 = 0$ . Factoring yields $n = 36$ (the positive root), so 36 monthly deposits are required.

The number of months Rashid takes to deposit a total of Tk. 106200106200106200 is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The number of months Rashid takes to deposit a total of Tk. 106200106200106200 is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

The number of months Rashid takes to deposit a total of Tk. $106200$ is —

The number of months Rashid takes to deposit a total of Tk. $106200$ is —