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CuriousTab

Ratio and Proportion problems


  • 1. The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:

  • Options
  • A. 20
  • B. 30
  • C. 48
  • D. 58
  • Discuss
  • 2. The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?

  • Options
  • A. 8 : 9
  • B. 17 : 18
  • C. 21 : 22
  • D. Cannot be determined
  • Discuss
  • 3. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?

  • Options
  • A. 2 : 5
  • B. 3 : 7
  • C. 5 : 3
  • D. 7 : 3
  • Discuss
  • 4. Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?

  • Options
  • A. Rs. 17,000
  • B. Rs. 20,000
  • C. Rs. 25,500
  • D. Rs. 38,000
  • Discuss
  • 5. If Rs. 782 be divided into three parts, proportional to ½ : ⅔ : ¾, then the first part is:

  • Options
  • A. Rs. 182
  • B. Rs. 190
  • C. Rs. 196
  • D. Rs. 204
  • Discuss
  • 6. A and B together have Rs. 1210. If 4⁄15 of A's amount is equal to ⅖ of B's amount, how much amount does B have?

  • Options
  • A. Rs. 460
  • B. Rs. 484
  • C. Rs. 550
  • D. Rs. 664
  • Discuss
  • 7. In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

  • Options
  • A. 50
  • B. 100
  • C. 150
  • D. 200
  • Discuss
  • 8. Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?

  • Options
  • A. 2 : 3 : 4
  • B. 6 : 7 : 8
  • C. 6 : 8 : 9
  • D. None of these
  • Discuss
  • 9. A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets Rs. 1000 more than D, what is B's share?

  • Options
  • A. Rs. 500
  • B. Rs. 1500
  • C. Rs. 2000
  • D. None of these
  • Discuss
  • 10. The fourth proportional to 5, 8, 15 is:

  • Options
  • A. 18
  • B. 24
  • C. 19
  • D. 20
  • Discuss

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