APTITUDE FORMULA

                                           APTITUDE FORMULA 

TIME AND DISTANCE -> IMPORTANT FACTS AND FORMULAE

1. Speed = [Distance/Time],
Time=[Distance/Speed],
Distance = (Speed*Time)

2. x km/hr = [x*5/18] m/sec.

3. If the ratio of the speeds of A and B is a:b, then the ratio of the times taken by them to cover the same distance is 1/a : 1/b or b:a.

4. x m/sec = [x*18/5] km/hr.

5. Suppose a man covers a certain distance at x km/hr and an equal distance at y km/hr. then, the average speed during the whole journey is [2xy/x+y] km/hr.
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PROFIT AND LOSS -> IMPORTANT FACTS AND FORMULAE

Cost Price : The price at which an article is purchased, is called its cost price, abbreviated as C.P.

Selling Price : The price at which an article is purchased, is called its cost price, abbreviated as C.P.

Profit or Gain : The price at which an article is purchased, is called its cost price, abbreviated as C.P.

Loss : If S.Pis less than C.P., the seller is said to have incurred a loss.

1. Gain = (S.P.) - (C.P.)

2. Loss or gain is always reckoned on C.P.

3. gain% = [Gain*100/C.P.]

4. Loss = (C.P.) - (S.P.)

5. Loss% = [Loss*100/C.P.]

6. S.P. = (100+Gain%)/100 * C.P.

7. S.P. = (100-Loss%)/100 * C.P.

8. C.P. = 100/(100+Gain%) * S.P.

9. C.P. = 100/(100-Loss%) * S.P.

10. If an article is sold at a gain of say, 35%, then S.P. = 135%