Question

rational numb
7
What is the number?
14. Lakshmi is a cashier in a bank. She has currency notes of denomination
*100. 50 and 10. respectively. The ratio of the number
notes is 2:3:5. The total cash with Lakshmi is 4,00.000. Hom
notes of each denomination does she have?
15. I have a total of 2 300 in coins of denomination 71, 72 and;-
numberof2 coins is 3 times the number of 5 coins. The total nu
coins is 160. How many coins of each denomination are with me

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Answer 1

Answer:

Sol 14 ) 2000, 3000 and 5000

Step-by-step explanation:

Sol 14 ) 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.

I know only this , sorry .