Ashifur August 8, 2023 - 19:58
Problem: A cashier received a total amount of Tk. 10,000 from a depositor in a total of 140 notes of Tk. 50 and Tk. 100 denominations. How many notes of Tk. 50 denominations did he receive?

View all: STANDARD BANK OFFICER (ATO) | WRITTEN QUESTION (MATH) SOLVE | 2016

Correct Answer: Number of 50 Tk. note was 80.

Explanation:

Let, Number of 50 Tk. note = x

& Number of 100 Tk. note = 140 – x

According to the question,

50x + 100(140 – x) = 10,000

=> 50x + 14,000 – 100x = 10,000

= – 50x = -4,000

=> x = $\frac{4000}{50}$

x= 80

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