Ratio and proportion Online Quizzes - Section 4

1. If a:b = 5:7 and c:d = 2a:3b, then ac : bd is






2. If x:y = 3:4, then (7x+3y):(7x-3y) is equal to






3. The product of two positive numbers is 4752 and their ratio is 11:12. The smaller of these numbers is






4. Two numbers are in ratio 2:3. If 2 be subtracted from the first and 2 be added to the second, the ratio becomes 1:2. Find the sum of the numbers.






5. How to divide 3395 in ratio of 42 : 32 : 23?






6. a:b = 3:7 and b:c = 9:5. What is a:b:c?






7. Income ratio of Ramesh and Suresh is 5:6. Their spending ratio is 7:9. Ramesh saves 4000 and Suresh saves 3000. Income and spending respectively of Ramesh and Suresh are






8. 10/13 = 11/28 = 21/11 = 12/11 = K. What is K?






9. Find the mean proportional between 7 and 63?






10. Find A:B:C:D when A:B = 2:3 ; B:C = 7:9 ; C:D = 5:7






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