sushom101 wrote:

thanks all,

SIMPLE Answers for 1 & 2

can i get a similar ...simpler method for question 1 pls.

Ask and you shall receive

Question 1.

discount is 75/2% a fancy way of saying 37.5% = change to simple fraction = 3/8 thus the discount is 5/8 which is 62.5%

with a 37.5% discount you can 33 more kgs for $560

price x volume = $560

write down the equation 5/8P(V+33) = $560

P*V = 560 thus, V = 560/P substitute

5/8P(560/P+33) = 560

350 + (33)5/8P = 560

(33)*5/8P = 210

P = 210 x 8/(3*11*5)

P = (14*8)/11

So what will V be when you increase the Price by 37.5%?

1.375 = 11/8

11/8*P = 11/8 x (14)(8)/11 = 14

Thus 14V=560

V=560/14=40

*remember don't make any unnecessary calculations

Second problem

These rate problems require you to find a common element between the 2 objects. In this particular problem, Time (the time it took to meet) is the common element.

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