Janaki spends 20% of her monthly salary for her son‘s education. When she will get her increment of Tk. 170 next month, she plans to spend half of that also for her son’s education. The total money she would spend then would be Tk. 645. What is his present income?

Ashifur August 8, 2023 - 17:10

Problem: Janaki spends 20% of her monthly salary for her son‘s education. When she will get her increment of Tk. 170 next month, she plans to spend half of that also for her son’s education. The total money she would spend then would be Tk. 645. What is his present income?

View all: UCBL BANK | OFFICER | WRITTEN MATH QUESTION SOLVE | 2010

Correct Answer: TK 2800

Explanation:

Let, Present salary of Janaki is Tk. x

She spends for her son’s education after incrementx x 20% + $\frac{170}{2}$

=0.2x + 85

According to the question,

0.2x + 85 = 645

0.2x = 645 — 85

0.22x= 560

x = $\frac{270×10}{2}$= 2800

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