Practice MCQ Questions and Answer on Ratio
21.
A box contains Rs. 56 in the form of coins of 1 rupee, 50 paise and 25 paise. The number of 50 paise coins is double the numbers of 25 paise coins and four times the number of one rupee coins. How many 50 paise coins are there in the box?
- (A) 52
- (B) 64
- (C) 32
- (D) 16
22.
Rs. 33630 are divided among A, B and C in such a manner that the ratio of the amount of A to that of B is 3 : 7 and the ratio of the amount of B to that of C is 6 : 5. The amount of money received by B is = ?
- (A) Rs. 14868
- (B) Rs. 16257
- (C) Rs. 13290
- (D) Rs. 12390
23.
The sides of a triangle are in the ratio $$\frac{{\text{1}}}{{\text{2}}}$$ : $$\frac{{\text{1}}}{{\text{3}}}$$ : $$\frac{{\text{1}}}{{\text{4}}}$$ and its perimeter is 104 cm. The length of the longest side (in cm) is -
- (A) 26
- (B) 32
- (C) 48
- (D) 52
24.
In a school having roll strength 286, the ratio of boys and girls is 8 : 5. If 22 more girls get admitted into the school, the ratio of boys and girls becomes
- (A) 12 : 7
- (B) 10 : 7
- (C) 8 : 7
- (D) 4 : 3
25.
If A : B = 7 : 9 and B : C = 5 : 4, then A : B : C is -
- (A) 7 : 45 : 36
- (B) 28 :36 : 35
- (C) 35 : 45 : 36
- (D) None of these
26.
The respective ratio between the monthly salaries of Rene and Som is 5 : 3. Out of her salary Rene gives $$\frac{{\text{1}}}{{\text{6}}}$$ th as rent, $$\frac{{\text{1}}}{{\text{5}}}$$ th to her mother, 30% as her education loan and keeps 25% aside for miscellaneous expenditure. Remaining Rs. 5000 she keeps as savings. What is Som's monthly salary ?
- (A) Rs. 21000
- (B) Rs. 24000
- (C) Rs. 27000
- (D) Rs. 36000
27.
Two numbers are in ratio P : Q. when 1 is added to both the numerator and the denominator, the ratio gets changed to $$\frac{{\text{R}}}{{\text{S}}}$$. again, when 1 is added to both the numerator and denominator, it becomes $$\frac{1}{2}$$. Find the sum of P and Q.
- (A) 3
- (B) 4
- (C) 5
- (D) 6
28.
Present ages of A and B are in the ratio 5 : 6 respectively. After seven years this ratio becomes 6 : 7. Then the present age of A in years is = ?
- (A) 35 years
- (B) 33 years
- (C) 32 years
- (D) 30 years
29.
y varies directly as (x + 3) and y = 8 when x = 1. What is the value of y when x = 2 ?
- (A) 6
- (B) 10
- (C) 12
- (D) 16
30.
A person bought some rice and wheat for Rs. 380. The ratio of weight of rice and wheat is 4 : 3 and the price equal amount of rice and wheat is in the ratio 5 : 6. The rice was bought of worth = ?
- (A) Rs. 380
- (B) Rs. 300
- (C) Rs. 200
- (D) Rs. 180