Ratio

Fill in the blank :- $32 \mathrm{m} :64 \mathrm{m}=6 \sec : \mathrm{\_\_\_\_\_}$

An alloy contains zinc, copper and tin in the ratio $2:3:1$ and another contains copper, tin and lead in the ratio $5:4:3$. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kilogram in the new alloy will be$:$ 

Vessel 'A' contains 150 litres of mixture of milk and water in the ratio of 3:1. Vessel 'B' contains 200 litres of the mixture in the ratio of 5:2. If the mixture from both the vessels are poured into vessel 'C', find the ratio of the resulting mixture.

The ratio is said to be not in the simplest form if common factor is _____.

A sum of money is to be distributed among A, B, C, D in the proportion of $5 : 2 : 4 : 3$. What is B's share, if C gets, $₹1000$ more than D ?

The ratio of ducks and frogs in a pond is $37:39$ respectively. The average number of ducks and frogs in the pond is $152$. What is the number of frogs in the pond?

Two quantities can be compared only if they are in the same _____.

If the lengths of the sides of a triangle are in the ratio 4:5:6 and the inradius of the triangle is 3cm, then the altitude of the triangle corresponding to the largest side as base is:

A person spends Rs 8,100 in buying some tables at 1,200 each and some chairs at Rs.300 each. The ratio of the number of chairs to that of tables when the maximum possible number of tables is purchased, is

Which of the following is correct:-

Select the related word/letter/number from the given alternatives:
20 : 6 :: 40 : ?

A box has $210$ coins of denominations one- rupee and fifty paise only. The ratio of their respective values is $13 : 11$. The number of one rupee coins is

If $a:b=6:9$ and $b:c=4:7$, find $a:b:c.$

The ratio of the number of boys and girls in a school was $5:3$. Some new boys and girls were admitted to the school, in the ratio of $5:7$. After this, the total number of students in the school became $1200$, and the ratio of boys to girls changed to $7:5$. The number of students in the school before new admissions was$:$

If $A=\frac{1}{4}B=\frac{1}{2}C$, then find the ratio $A : B : C$.

If $₹ 3900$ is divided among three persons A, B and C in the ratio $\frac{1}{2}:\frac{1}{3}:\frac{1}{4}$.how much does A get?

If $2A = 3B = 4C$, then find the ratio of $A : B : C$.

Ram earns $₹125$ in $8 \mathrm{days}$ and Shyam earns $₹140$ in $10 \mathrm{days}$, what is the ratio of their earnings for $1 \mathrm{day}?$

Find the total number of students in the three classes before the increase, if the students in three classes are in the ratio $4 : 6 : 9$. If $12$ Students are increased in each class, the ratio changes to $7 : 9 : 12$.

If$A : B = 8 : 15, B : C = 5 : 8$and $C : D = 4 : 5$, then $A : D$is equal to: