Two numbers are in the ratio 5:3. If they differ by 8. what are the numbers?
(a) 20.12
(b) 11.-12
(C) -40.-24
(d) 5.3
Answers
Step-by-step explanation:
110 is an example of an irrational number between 10 and 11 c) ... b). {2, 3, 4, 5, 7, 8, 11, 12, 13, 16, 17, 19, 20, 23, 24}. 3 ... b). 7 3 5 7. , , ,. 12 4 6 8 c). 3 2 1 2 13. , , , ,. 10 5 2 3 15 d). 7 1 5 3 13.
Answer:
1)Two numbers are in the ratio 5:3.If they differ by 18,what are the two numbers?
2)A number is decreased by 5% of it is 3800.What is the number?
Answer
If two numbers are in the ratio 5:3 , it means the total of the two is 8 parts and the two numbers are 5 parts and 3 parts of the total.
Then the difference between them is 2 parts of the total. Two parts are equal to 18. So one part is 9. So eight parts will then be 8*9 = 72. Then the two numbers are 5 parts = 5*9=45 and three parts 3*9 = 27.
==============
If a number is decreased by 5%, then it becomes 100 % - 5% = 95% of itself.
That means 95/100 of number is 3, 800.
The number then will be equal to 3,800 * 100 /95 = 4, 000