Ratio and Proportion Quiz Set 002 | Maths Aptitude Quiz Questions and Mock Test on Ratio and Proportion Set 2 | mock tests for Bank PO, SSC Exams, SO Clerical Exam, GATE Exam, LIC AO, GIC AO, etc.

**Your Score**
Correct Answers:
Wrong Answers:
Unattempted:

Question 1

Mr. X has got a new telephone connection for a plan that has a 30-day rental of Rs. 900. The phone was installed on June 21. What is the amount of the bill for the month of June if billing is done on pro-rata proportionate basis?

Rs. 270.

Rs. 570.

Rs. 1170.

Rs. 870.

Soln.
Ans: a

June has 30 days, so billing is for 30 - 21 = 9 days. The ratio on proportionate basis is $9/30$ × 900 = Rs. 270.

Solution | Discuss! | Chapters»

Question 2

A bag contains 25p, 10p and 5p coins in the ratio 8 : 4 : 11. How many 25 paise coins are there if the total amount is Rs. 59?

160.

162.

158.

164.

Soln.
Ans: a

Let the total number of coins be 8x, 4x and 11x. Please note that 25p = Rs. 1/4, 10p = Rs. 1/10, 5p = Rs. 1/20, so they add to x × $(8/4 + 4/10 + 11/20)$ = 59. LCM of 4, 10 and 20 is 20, multiplying both sides by 20 we have x × $(8 × 5 + 4 × 2 + 11)$ = 59 × 20, which is x × $(40 + 8 + 11)$ = 59 × 20, solving for x we get x = 20, so 25p coins = 20 × 8 = 160.

Solution | Discuss! | Chapters»

Question 3

What is the ratio A : B : C if A = $7/9$B and B = $18/17$C?

14 : 18 : 17.

7 : 18 : 17.

9 : 18 : 17.

7 : 17 : 126.

Soln.
Ans: a

We can write B = $9/7$A. Now we can use B as the pivot and write $9/7$A = B = $18/17$C. Divide all three with 9 × 18 to get $A/{7 × 18}$ = $B/{9 × 18}$ = $C/{17 × 9}$. So the required ratio is 126 : 162 : 153. The answer is 14 : 18 : 17.

Solution | Discuss! | Chapters»