Book
Maths Puzzle
Numerical Ability
dy/dx=(4+y^2)/(1+x^2),if y(1)=2 then y(2)=?
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Book Other Question
Two trains running in opposite direction crosses a man standing on a platform in 27 seconds 17 seconds respectively and they cross each other in 23 seconds then find the ratio of their speed?
an employee reduces the number of his employees in the ratio 8:7 and decreased their wages in the ratio 7:2. Identify whether the total wages increases or decreases and in what ratio