Question

solve the following sums please answer my last question please fast ​

Answer 1

27, 2194.50 ,23

Step-by-step explanation:

(1) edge : volume

I. 1 : (1)^3= 1

F. 3×1 : (3)^3 = 27

volume will be 27 times of the initial volume.

(2) 5% = 5/100 = 1/20, 10% = 1/10

A : B = 20:21 , B : C = 10 : 11

A:B:C = 20×10 : 21×10 : 21×11 = 200:210:231

200 units = 1900

C paid to B = 231×1900/200 =Rs2194.5

(3) 2x + 1/2x = 5

on squaring both sides ;

4x^2 + 1/4x^2 + 2(2x)(1/2x) = 25

1/4x^2 + 4x^2 = 25-2 = 23