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Asma has a total of Rs 590 as currency notes in the Henominations ofand Rs 10. The ratio of the number of Rs 50 notes and Rs 20 notes is 3:5. If she has a total of 25 notes, how many notes of each denomination she has? |
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Answer» Since Rs 50 & Rs 20 are in the ratio we can write,No. of Rs 50 notes= 3xNo. of Rs 20 notes= 5xAsShe has a total of 25 notes,So, we can write,No. of Rs 10 notes= 25-(3x+5x) = 25-8x Now we calculate the actual amount of each notes,Rs 50 note amount to = 50×3x = 150xRs 20 note amount to = 20×5x = 100xRs 10 note amount to = 10×(25-8x) = 250-80x Total sum of money he has = Rs590According to the problem,150x + 100x + 250 - 80x = 590170x = 340x = 2 Now we find out the actual no of notes in each case,No. ofRs 50 notes = 3 × 2 = 6 ; No. ofRs 20 notes = 5 × 2 = 10 ; No.ofRs 10 notes = 25-(8× 2) = 9 |
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