Aptitude - Aptitude-Time and works
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A and B can separately do a piece of work in 20 and 15 days respectively. They worked together for 6 days, after which B was replaced by C. If the work was finished in next 4 days, then the number of days in which C alone could do the work will be ?

A

(success)
60

B

(success)
35

C

(success)
40

D

(success)
30

*12th Feb 2016*

Engg. maths - differential equations - concept card 4f 4f - solutions of differential equations bernoulli's equation: the differential equation: where p and q are functions of (x,y) is known as bernoulli's equation. case 1: when n=0 if n=0, bernoulli's equation reduces immediately to the standard form 1st-order linear differential equation: case 2: when n=1 if n=1, the equation can also be written as a linear equation: case

*12th Feb 2016*

Reasoning concept card 9: coding decoding (types of questions) dear aspirants, in the previous card, we have discussed coding-decoding concept. coding decoding concept is considered to be very simple but it appears in various forms in reasoning section of various psu/government recruitment examinations. let’s discuss types of question one by one: 1. simple coding – in this type of questions, the simple coding

*12th Feb 2016*

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