EASY
Civil Services Preliminary Examination Paper 2
IMPORTANT
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The average weekly salary per head of all employees (supervisors and labourers) is ₹ . The averagelweekly sa lary per head of all the supervisors is ₹ while the average weekly salary per head of all the labourers is ₹. Find the number of supervisors in the factory if there are labourers in it.
(a)
(b)
(c)
(d)

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Important Questions on Basic Numeracy
EASY
Civil Services Preliminary Examination Paper 2
IMPORTANT
Two alloys A and B contain silver and copper in the ratio and , respectively. Find the ratio in which they be mixed such that there be % of silver.

EASY
Civil Services Preliminary Examination Paper 2
IMPORTANT
A tea producer mixes two categories of tea from two gardens is the ratio . The cost price of one category is
₹ per kg and that of other is
₹ per kg. The mixture is sold at
₹ per kg. Find his gain per cent.

MEDIUM
Civil Services Preliminary Examination Paper 2
IMPORTANT
The wheat sold by a shopkeeper contained low-quality wheat. What quantity of good quality wheat should be added to kg of wheat so that percentage of low-quality wheat becomes ?

MEDIUM
Civil Services Preliminary Examination Paper 2
IMPORTANT
Padam purchased of rice at rate of and another rice at a certain rate. He mixed the two and sold the entire quantity at the rate of and made overall profit. At what rate did he purchase the lot of another rice?

MEDIUM
Civil Services Preliminary Examination Paper 2
IMPORTANT
A painter mixes blue paint with white paint so that the mixture contains % blue paint. In a mixture of litres paint, how many litres blue paint should be added so that the mixture contains % of blue paint?

MEDIUM
Civil Services Preliminary Examination Paper 2
IMPORTANT
A lump of copper and brass weights kg and is worth
₹ . If the proportion of copper and brass be interchanged, the lump would be worth
₹ If kg of copper and kg of brass costs
₹ , find the cost of copper per kg.

MEDIUM
Civil Services Preliminary Examination Paper 2
IMPORTANT
Five litres are drawn from a vessel full of water and substituted by pure milk. Again, L of the mixture are drawn and substituted by pure milk. If the vessel now contains water and milk in the ratio , find the capacity of the vessel.

MEDIUM
Civil Services Preliminary Examination Paper 2
IMPORTANT
Three glasses of sizes litres, litres and litres contain mixture of milk and water in the ratio of and respectively. The contents of all the three glasses are poured into single vessel. Find the ratio of milk to water in the resultant mixture ?
