The ratio of A and B in an alloy is 2 : 5. If the alloy is made of only A and B, how much amount of B will be there in 210 kg of that alloy?
Answer & explanation
Correct answer: option 1
A : B
2 : 5
⇒ (2 + 5)units = 210
⇒ 7 units = 210
⇒ 1 unit = 30.
⇒ Amount of B in the alloy = 5 x 30 = 150 Kg.