RRB Junior Engineer Stage 1 Model Papers 8

Question : 5 of 100

Marks: +1, -0

Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should these be mixed to get an alloy 15 times as heavy as water?

1 : 1
1 : 2
2 : 3
3 : 2

Validate

Solution:

By rule of alligation, we have

∴ Required ratio

=6/4=3:2

Go to Question:

Prev Question

Next Question