Ratio & Proportion Questions and Answers

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Q31
Two whoe numbers whose sum s 72 cannot be in the ratio :
  • A 5 : 7
  • B 3 : 5
  • C 4 : 5
  • D 3 : 4
Answer: Option D
Q32
If a carton containing a dozen mirrors is dropped, whch of the following cannot be the ratio of broken mirrors to unbroken mirros ?
  • A 2 : 1
  • B 3 : 1
  • C 3 : 2
  • D 7 : 5
Answer: Option C
Q33
The ratio of two numbers is 3 : 4 and their sum is 420. The greater of the two numbers is :
  • A 175
  • B 200
  • C 240
  • D 315
Answer: Option C
Q34
The ratio between two numbers is 3 : 4 and their 1.c.m is 180. The first number is :
  • A 60
  • B 45
  • C 20
  • D 15
Answer: Option B
Q35
The L.C.M. and H.C.F. of two numbres x  and y are l and h respectively. Then
  • A l : h = x : y
  • B x : h = l : y
  • C x : l = y : h
  • D x : h = y : l
Answer: Option B
Q36
A and B together have Rs 1210 with them. If 4/15 of A's amount is equal to 2/5 of B's amount, how much amount does B have ?
  • A Rs 466
  • B Rs. 484
  • C Rs 550
  • D Rs 664
Answer: Option B
Q37
Five bananas and four apples cost as much as three bananas and seven aples. The ratio of the cost of one banana to that of one apple is :
  • A 3 : 2
  • B 4 : 3
  • C 3 : 4
  • D 1 : 3
Answer: Option A
Q38
The salaries of A, B, and C are in the ratio of 1 : 2 : 3. The salary of B and C together is Rs 6000. By what percent is the salary of C more than that of A ?
  • A 100%
  • B 200%
  • C 300%
  • D 600%
Answer: Option B
Q39
The average age of three boys is 25 years and their ages are in the proportion 3 : 5 : 7. The age of the youngest boy is :
  • A 21 years
  • B 18 years
  • C 15 years
  • D 9 years
Answer: Option C
Q40
An amount of Rs. 2430 is divided among A, B and C such that if their shares be reduced by Rs. 5, Rs. 10 and Rs. 15 respectively, the remainders shall bein the ratio 3 : 4 : 5. The share B is :
  • A Rs 605
  • B Rs 790
  • C Rs 800
  • D Rs 810
Answer: Option D
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