Infosys Company Numerical Ability Profit and Loss

What is the ratio between the highest and the lowest selling price, assuming that the factories are selling only one product?
2 : 1
7 : 2
15 : 8
11 : 2
13 : 5

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Infosys Other Question

A student appeared in 3 papers of Maths, English and Hindi. The maximum marks of the three papers are in the ratio of 3 : 2 : 5 and total of 3 papers is 500. Umesh obtained 50% in Math , 68% in English ,and 73% overall.
What is the percentage marks he scored in Hindi.
a)84%
b)68%
c)79.4%
d)88.8%
A sum of money at simple interest amounts to 815 in 3 years and to 854 in 4 years. The sum is:
a)650
b)690
c)698
d)700