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In a ratio of four numbers, the first two numbers are 15% and 20% more than the third number. The fourth number is 5% less than the third number. What the ratio of the first, second and fourth number? |
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Answer» SOLUTION :- Let us Assume that, the third NUMBER is 100. Than, Given that, the first two numbers are 15% and 20% more than the third number. So, → First Number = 100 + 15% of 100 = 100 + (15 * 100/100) = 100 + 15 = 115 . → SECOND Number = 100 + 20% of 100 = 100 + (20 * 100/100) = 100 + 20 = 120 . Also, The fourth number is 5% less than the third number. Than, → Fourth Number = 100 - 5% of 100 = 100 - (5 * 100/100) = 100 - 5 = 95 . To Find :-
→ First Number : second Number : Fourth Number Putting values we get :- → Required Ratio = 115 : 120 : 95 → Required Ratio = 5 * 23 : 5 * 24 : 5 * 19 5 will be cancel , → Required Ratio = 23 : 24 : 19 (Ans.) Hence, the ratio of first, second and fourth number is 23 : 24 : 19. |
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