- The ratio of monthly income of A , B and C is 5 : 8 : 3. If annual income of B is rs.192000, then what is the sum of the monthly income of A and C ?
1800040000140001600052000Option D

Let monthly income of A, B and C = 5x, 9x and 3x respectively.

Annual income of B = 12 * 8x = 96x

96x = 192000

x = 2000

sum of the monthly income of A and C = 5x + 3x = 8x = 8 * 2000 = 16000 - Three are two numbers in the ratio of 12 : 17. If 8 is substracted from each number the new numbers are in the ratio of 2 : 3. If 12 is added in each number then what will be the new ratio of the numbers ?
4 : 55 : 23 : 41 : 44 : 15Option C

Let two numbers are 12x and 17x respectively.

12x – 8/ 17x – 8 = 2/3

36x – 24 = 34x – 16

x = 4

two numbers are = (12 * 4), (17 * 4) = 48, 68

If we added 12 in each number, new ratio = (48 + 12) : (68 + 12) = 3 : 4 - There are two numbers in the ratio of 5 : 8. If 20 is added in first number and 6 is added in second number, then ratio of two numbers become 6 : 7. Find the larger of the two numbers ?
5048326428Option D

Let 1st numbers = 5x

2nd numbers = 8x

5x + 20/ 8x + 6 = 6/7

48x + 36 = 35x + 140

x = 8

Langer number = 8 * 8 = 64 - Total income of A, B and C is rs.57000. If A, B and C spend 60%, 80% and 82% of their income respectively and ratio of their saving is 8 : 5 : 9, then what is the income of B ?
1800020000250003300015000Option E

Let saving of A,B and C = 8x, 5x and 9x respectively.

income of A = 8x/40 * 100 = 25x

income of B = 5x/20 * 100 = 25x

Income of C = 9x/18 * 100 = 50x

Total income = 57000

income of B = 57000 * 25x/95x = 15000 - The ratio of salaries of P, Q and R is 5 : 4 : 6. If the salary of P, Q and R are increased by 20%, 25% and 32% respectively. Find the new ratio of their salaries.
5 : 8 : 33 : 8 : 93 : 5 : 630 : 25 : 4230 : 28 : 15Option D

Let salary of P, Q and R are 5x, 4x and 6x respectively.

new salary ratio = (5x * 120/100) : (4x * 125/100) : (6x * 140/100)

= 6x : 5x : 42x/5

= 30 : 25 : 42 - In what ratio should rice at rs.13 per kg and rs.20 per kg be mixed. So that the mixture be worth of rs.17 per kg ?
5 : 23 : 42 : 15 : 44 : 3Option B

By alligation method,

13 20

17

3 4

ratio = 3 : 4 - A bag has coins in the denominations of 50p, 25p and 20p in the ratio of 4 : 2 : 1. If the total value of the coins is rs.108. Find the number of 20p coins in the bag ?
50804540240Option D

Let the number of 50p, 25p, and 20p coins in the bag are 4x, 2x and x respectively.

(50 * 4x) + (25 * 2x) + (20 * x) = 10800p

200x + 50x + 20x = 10800

270x = 10800

x = 40

number of 20p coins = 40 - First number and second number are 32% and 48% more than the third number. Find the ratio of first number, third number and second number.
33 : 25: 3733 : 37 : 2533 : 38 : 255 : 7 : 86 : 5 : 3Option A

Let third number = 100

first number = 100 * 132/100 = 132

second number = 100 * 148/100 = 148

ratio of first, third and second number = 132 : 100 : 148 = 33 : 25 : 37 - A marriage party is attended by a total of 80 persons. If the ratio of men and women in the party is 3 : 2, how many more women must join the party such that the ratio becomes 6 : 5 ?
41214819Option D

Total persons = 80

men = 80 * 3/5 = 48

women = 80 * 2/5 = 32

Let the number of women will join = x

48/32 + x = 6/5

192 + 6x = 240

x = 8 - The students of three class are in the ratio of 5 : 6 : 4. If 8 students of each class increased so that, the ratio becomes 6 : 7 : 5, then Find the total number of students in the class before increased ?
140120165200170Option B

Let the number of students in 1st, 2nd and 3rd class are 5x, 6x and 4x respectively.

5x + 8/6x + 8 = 6/7

36x + 48 = 35x + 56

x = 8

total students of class before increased= 5x + 6x + 4x = 15x = 15 * 8 = 120