Proportion

In a group of buffaloes and ducks, the number of legs are $24$more than twice the number of heads. What is the number of buffaloes in the group?

A juice centre requires $35 \mathrm{dozen}$ guavas for $28 \mathrm{days}$. How many dozen guavas will it require for $36 \mathrm{days}$?

If $y=3+1.9x$, and mode of $x$ is $15$, then the mode of $y$ is:

$40$ men take $8$ days to earn $\mathrm{Rs}. 2000$. How many men will earn $\mathrm{Rs}. 200$ in two days?

A sum of $₹549$ is to be divided among Priya, Preeti and Sonu in such a way that $3$ times Priya's share, $4$ times Preeti's share and $7$ times Sonu's share are all equal. What is the share of Priya?

If $a: b=3: 4, b: c=4: 7$, then $\frac{a+b+c}{c}$ is equal to

Mayank can do a piece of work in $3$ days. Sanjay can do the same work in $4$ days. The wage for full work is $₹350$. If both work together to complete the work, then find out the earning of Sanjay if the wages are paid in proportion to work done.

If$2: 3$ and$2: x : 4: 8$ the value of$y$ is:

If p is the third proportional to $3, 9,$ then what is the fourth proportional to $6, p, 4?$

If $x$ is subtracted from each of $24, 40, 33 \mathrm{and} 57$, the numbers, so obtained are in proportion. The ratio of $\left(5x+12\right)$ to $\left(4x+15\right)$ is_____.

An insect which is climbing on a vertical pole in such a way that on one day it climbs a height of $2 \mathrm{m}$ on next day it comes down $1 \mathrm{m}$. If height of the pole is $12 \mathrm{m}$, find the no. of days in which it will reach the top.

If $p$ persons working $p$ hours a day for each of $p$ days produce $p$ units of work, then the units of the work produced by $q$ persons working $q$ hours a day for each $q$ day is:

If $a: b = c:d$, and $e:f=g:h$, then $(ae + bf): (ae - bf) = ?$

If $a: b = c:d$, and $e:f=g:h$, then $(ae + bf): (ae - bf) = ?$

A sum of $₹6342$ is divided amongst $A, B, C$ and $D$ in the ratio $3 : 4 : 8 : 6$. What is the difference between the shares of $B$ and $D$?

In a proportion, the product of the first and fourth terms is $70$ and that of the second and third term is $3.5y$. The value of $y$ is __________.

If the length, breadth, and height of the room are in the ratio $3:2:1$. The breadth and height of the room are halved and length of the room is doubled. Then area of the four walls of the room will:

A kid has $300$ coins of different denominations-$25$ paise coins, $50$ paise coins, and $₹1$ coins. In all, he has $₹220$. The ratio of a number of $25$ paise coins: Number of $50$ paise coins: $₹1$ coins $=2:5:8$. How many $50$ paise coins does he have?

There are only three kinds of books in the library, namely fiction, non-fiction, and biology. Ratio of fiction to non-fiction is $3:2$; ratio of non-fiction to biology is $4:3$. Total number of books is more than $1000$. What is the minimum number of books in the library?

If $(\mathrm{x}+\mathrm{y}):(\mathrm{y}+\mathrm{z}):(\mathrm{z}+\mathrm{x})=6:7:8$ and $(\mathrm{x}+\mathrm{y}+\mathrm{z})=14$, then find the value of c.