EASY
RRB NTPC CBT 1
IMPORTANT
Earn 100

A milkman has two types of milk. In one, the percentage of water is 10% and in the second the percentage of water is 20%. If he takes 90 L of milk of type I and 60 L of milk of type II and prepares a new mixture, the percentage of water in this new mixture is:

80% studentsanswered this correctly

Important Questions on Mixture & Alligation

HARD
RRB NTPC CBT 1
IMPORTANT
Wages of 14 persons are Rs.33000. Each man gets Rs.3000 and each woman gets Rs.1500. The number of men is:
MEDIUM
RRB NTPC CBT 1
IMPORTANT
A mixture contains sugar and water in the ratio 3:49. If it contains 0.45 kg of sugar, the quantity of water in the mixture is:
MEDIUM
RRB NTPC CBT 1
IMPORTANT
A heard of 2 legged and 4 legged animals give a head count as 100. When legs are counted, it comes to be 320. The number of two-legged animals is:
HARD
RRB NTPC CBT 1
IMPORTANT
How much water must be added to a bucket which contains 40 L of milk at the cost price of Rs.3.50 per L, so that the cost of milk reduces to Rs.2 per L
HARD
RRB NTPC CBT 1
IMPORTANT
In what proportion must water be added to spirit to gain 20% by selling it at the cost price?
EASY
RRB NTPC CBT 1
IMPORTANT
A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7:2 and 7:11 respectively. If equal quantities of alloys are melted to form a third alloy C, the ratio of gold and copper in C will be:
MEDIUM
RRB NTPC CBT 1
IMPORTANT
A trader bought a bag of 40 kg of basmati rice at 125 per kg and another bag of 60 kg at 150 per kg. He sold the entire stock at a profit of 20%. Find the selling price per kg.
MEDIUM
RRB NTPC CBT 1
IMPORTANT
Two vessels of the equal volume contain milk and water in the ratio 1:3 and 2:1. If they are mixed together what is the new ratio of milk and water?