Question

Ravi has Rs. 3360 in Rs. 100 , ₹ 50 and ₹10 notes .The number of each type of notes are in the ratio of 4:7:9 Find the number of each denomination
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Answer 1

Step-by-step explanation:

The number of hours covered in the clockwise revolution from 3 to 9 is 6 hours.

12 hours = 1 full revolution

=> 1 hour = 1/12 revolution

=> 6 hours = 6 * 1/12 = 1/2 revolution

Answer 2

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

\Rightarrow\ 400x=4,00,000

\Rightarrow\ \frac{400x}{400}=\frac{400000}{400}

[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.

$thanks$