1. Three numbers are in the ratio 1:3:5. If the sum
of the cubes of first two numbers is 224 and the
difference of the cubes of the last two numbers is
784, find the three numbers.
Answers
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1
Answer:
Explanation:
let the ratio be X
then number will be:
1X , 3X , 5X
A.T.Q
(X^3)+(3X^3)=224
X^3 + 27X^3=224
28X^3=224
X^3=224/28
X^3=8
X=2
5X^3 - 3X^3=784
125X^3 - 27X^3=784
98X^3=784
X^3=784/98
X^3=8
X=2
Step-by-step explanation:
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