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6. The ratio of the cost of two books is 3:5. If the cost of first book is 4.80 rupee, then what is the cost of the second one? |
A. Rs. 8 |
B. Rs. 9 |
C. Rs. 11 |
D. Rs. 5 |
7. A box contains rupee, fifty paise and twenty five paise coins whose values are in the proportion of 2:3:4. if the total number of coins are 480 find the value of each coins and total amount in rupees. |
A. 40, 60, 80 and 180 |
B. 40, 60, 90 and 150 |
C. 20, 40, 60, and 650 |
D. None of these. |
8. Ratio of earnings of Ram and Bimal is 8:9 respectively. if the earnings of Ram increased by 50% and the earnings of Bimal decrease by 25%; then the new ratio of their earnings becomes 16:9 respectively. What is the earning of Ram. |
A. 450 |
B. 500 |
C. 700 |
D. Cannot be determined. |
9. The ratio of the present ages of priya aand her son is 5:2 respectively. Seven years hence, the ratio will be 2:1 . What was the age of priya when her son was born? |
A. 20 years |
B. 25 years |
C. 23 years |
D. 21 years |
10. Three fourth of a number is equal to 20% of another number. What is the ratio of the first number to the second number? |
A. 3:10 |
B. 5:8 |
C. 4:15 |
D. 9:8 |