(2P + Q) : (Q + R) = 4 : 3 3 × (2P + Q) = 4 × (Q + R) 6P + 3Q = 4Q + 4R 6P - 4R = Q ----(1) (Q - P) : (Q - R) = 4 : 3 3 × (Q - P) = 4 × (Q - R) 3Q - 3P = 4Q - 4R 4R - 3P = Q ----(2) Equating (1) and (2), 6P - 4R = 4R - 3P 9P = 8R P : R = 8 : 9 Substituting the values in (1), 6 × 8 - 4 × 9 = 12 = Q ∴ The required ratio is P : Q : R = 8 : 12 : 9
The frequent digging of roads and pavements to lay phone and power cables, sewerage, water and gas pipelines can be prevented if authorities ...
Select the most appropriate meaning of the bold idiom in the given sentence.
There was no one in the team who could bell the cat and tell th...
Devil's Advocate
In each of the following questions a statement has been given with highlighted idioms. You are required to choose the meaning of the idioms from the op...
He had no intention of letting the Foreign Secretary steal any of his blunder .
If you don't believe me, go talk to him and hear it straight from the horse's mouth . It's true.
make full use of and derive benefit from a resource
At Your Wits’ End
Reap the whirlwind
During the winters the polar bear goes without food by nearly five to six months.
