QUESTION --2 Lakshmi is a cashier in a bank. She has currency notes of denominations` 100, ` 50 and ` 10, respectively. The ratio of the number of these notes is 2:3:5. The total cash with Lakshmi is ` 4,00,000.
Q1 How many Rs 100 notes does She have? *
Q2 How many Rs 50 notes does she have? *
Q3 How many Rs 10 notes does she have?
Q4 How many total notes does she have ? *
The above problem is related with ------- *
Linear equation in one variable
RATION NUMBERS
DATA HANDLING
QUADRATIC EQUATION
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Answer:
Let a number of notes are 2x, 3x and 5x.
According to question, 100 x 2x + 50 x 3x + 10 x 5x =4,00,000
\Rightarrow\ 200x+150x+50x=4,00,000⇒ 200x+150x+50x=4,00,000
\Rightarrow\ 400x=4,00,000⇒ 400x=4,00,000
\Rightarrow\ \frac{400x}{400}=\frac{400000}{400}⇒
400
400x
= 400×400000
[Dividing both sides by 400]
x = 1000
Hence, number of denominations of ` 100 notes = 2 x 1000 = 2000
Number of denominations of ` 50 notes = 3 x 1000 = 3000
Number of denominations of ` 10 notes = 5 x 1000 = 5000
Therefore, required denominations of notes of 100, 50 and ` 10 are 2000, 3000 and 5000 respectively.
Hope it is helpfull to you....
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