ANSWERS - HURDLE 27 : RATIO ( INCOME , EXPENSE AND SAVING )

Ans A. Option A

Ans B. Option D

Ans 1. 6,250 8,750

Ans 2. 4,500 12,000

Ans 3. 10,500 19,250

Ans 4. 7,600 9,500

Ans 5. 6,150 14,350

Ans 6. 14,000 5,600

Ans7. 39,050 31,950

Ans8. 48,100 55,500

Ans 9. 23,100 42,350

Ans 10. 17,500 49,000

Ans 11. 28,350 50,400

Ans12. 36,400 16,800

Ans13. 15,375 24,600

Ans14. 23,415 40,140

Ans15. 9,585 35,145

Ans16. 11,375 38,675

Ans17. 23,065 32,950

Ans18. 28,520 39,215

Ans19. 13,470 29,185

Ans20. H , Ans21. F , Ans22. D , Ans23. B , Ans24. A

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SOLUTION:

Solution 1. Let saving of Y be A. So saving of x will be A+1875
so, A+A+1875= 3625
so x saves 2750 and Y saves 875.

Let income of X be 5P
so income of Y will be 7P.

So expense of X = 5P-2750
and expense of Y= 7P-875

The ratio of expense of X and Y is 4:9
so we have (5P-2750) / (7P-875) = 4/9
solving it we get 45P-24750= 28P-3500
or 17P= 21,250
so P=1250
so income of x= 5*1250=6,250
and income of Y=7*1250= 8,750