The ratio of P and Q in an alloy is 3 : 7. If the alloy is made of only P and Q, how much amount of Q will be there in 1800 kg of that alloy?
Answer & explanation
Correct answer: option 4
Here,
P : Q
3 : 7
⇒ (3 + 7)units = 1800 Kg
⇒ 10 units = 1800
⇒ 1 unit = 180,
⇒ Amount of Q in alloy = 7 x 180 = 1260 Kg.