17. The sum of two numbers is 90 and their ratio is 14:16. Find the number. 18. Solve: 8b-3/3b = 2 19. The denominator of the rational number is greater than its numerator by 8. If the numerator isincreased by 17 and the denominator is decreased by 1, the number obtained is 3/2. Find the rational number. 20. Avinash's Mother's present age is 6 times his present age. Avinash's is age 5 years from now will be one third of his mother's present age. What are their present ages? 21. Choose the correct option: The Solution of which of the following equation is neither a fraction nor ainteger (A) 6X+4=10x+4 (B) 8x+36=4 (C) 8x+14=x+4 (D) 10X-16=x+8. 22. The difference between two whole numbers is 132. The ratio of the two numbers is 4:10. What are the two numbers ?23. The sum of the digits of two digit is 18. If the digit are reversed the number is 126 more than the original. Find the number.​