If A : B = 3 : 4 and B : C  = 8 : 9, then ratio A : B : C is

• 3 : 4 : 5

• 1 : 2  : 3

• 7  : 12 : 17

• 7  : 12 : 17

If a : b = b : c, then the ratio a⁴ : b⁴ is equal to

• ac : b²

• a² : c²

• c² : a²

• c² : a²

3.

80 is divided into three parts, such that the first part is 24 and the ratio of the second to the third is 4 : 3. The second part is

• 40

• 36

• 32

• 32

In a certain examination, the number of passes and failures are in the ratio 3 : 2. If 12 more students had passed, then the ratio of passes to failures would have been 21 : 10. The number of students who have passed the examination is

• 30

• 35

• 40

• 40

Ram and Gopal have money in the ratio 7 : 17 and Gopal and Krishna also have money in the same ratio 7 : 17, If Ram has Rs. 490, Krishna has

• Rs. 2,330

• Rs. 2,680

• Rs, 2890

• Rs, 2890

A bag contains Rs. 145 in the form of one-rupee, 50-paise and 25-paise coins in the ratio 3 : 5 : 7. The number of one-rupee coins is 

• 60

• 50

• 48

• 48

Rs. 366 are to be divided amongst A, B and C so that A may get  as much as B and C together and B may get  as much as A and C together, A's share will be

• Rs. 120

• Rs. 122

• Rs. 124

• Rs. 124

If Girilal's salary is  times of Hariram's and Shekhar's is  times of Hariram's, What is the ratio of Girilal's salary to Shekhar's salary.

• 44 : 21

• 28 : 33

• 33 : 28

• 21 : 44

In a parade of school students, the number of boys and girls are in the ratio of  9:7 respectively and the total number of boys and girls are 256. Find the number of girls.

• 102

• 112

• 118

• 118

If 15% of x is three times of 10% of y, then x : y = ?

• 1 : 2

• 2 : 1

• 3 : 2

• 3 : 2