Praveen has rupees 4662 in the from of 2 and 5, 10 rupees notes. if these notes are in the ratio of 3:5:8 the number of five rupees notes within him is
Answers
Answered by
1
Given :
- Total rupees praveen has = Rs. 4662
- In which there were 2 , 5 and 10 Rupees notes.
Assuming the notes are in ratio of 3:5:8
To find :
- Total no. of Rs. 5 notes
Solution:
Let x to be included in the ratio then 3x , 5x and 8x
Let the no. of Rs 2 , Rs 5 and Rs 10 be 3x , 5x and 8x
Now According to question,
3x × 2 + 5x × 5 + 10x × 8 = Rs. 4662
= 6x + 25x + 80x = Rs.4662
= 111x = Rs. 4662
=> x = Rs. 4662/111
x = Rs. 42
Now finding the no. of all Rs. 2 , Rs. 5 and Rs.10 notes
No. of Rs.2 notes = 3× 42 = 126
No. of Rs.5 notes = 5 × 42 = 210
No. of Rs.10 notes = 8 × 42= 336
In question, it is asking the no. of only Rs. 5 notes
=210
Answered by
3
Answer:
Let the number of notes of Rs 2, Rs 5 and Rs 10 be 3x, 5x and 8x resp
Then, 3x * 2 + 5x * 5 + 10x * 8 = 4662
i.e. 111x = 4662
i.e. x = 42
Then, number of Rs 5 notes = 5 * 42
= 210
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