A lady lends two sums each of Rs. 2,500 to two of her friends for 3 years charging 8% p. a. at simple interest for one and the same rate percent at compound interest for the other. Find the difference of interest obtained from the two friends. Find the difference of interest obtained from two friends

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3,750 deer

step-by-step explanation:

1,500 is 15 times larger than 100

lets make 250 15 times larger.

3750 deer

you can't solve x because it is 2 linear equation and you only have one equation

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb