The cost of 8 copies of a book is Rs. 488. Then the cost of 15 copies of the same book at the same rate is _______

The first term of a ratio is called _________. 

A certain amount was divided between Kavita and Reena in the ratio 4:3. If Reen's share was Rs. 2400 the amount is. 

Unit of ratio is ----------

Express 126:189 in simplest form. 

The boys and girls in a school are in the ratio 9:5. If the number of girls are 225 then the no.of boys are. 

A ratio x:y is said to be in simplest form, if HCF of x and y is.

The cost of 0.5 of a number equals 0.07 of another. Then the ratio of the two numbers is: 

The ratio of Rs. 5 and Rs. 750 in simplest form is. 

Ratio is a method of comparing two quantities by.