Question

Answer the following questions.

1. If x/y= 4/5, y/z= 15/16 find x:z

2. 8:64 and x:5 are in inverse proportion, find x.

3. If CP= 1200 and SP= 1500 find profit and profit %.

4. Calculate the principal for the following if SI at 20% for 4 and ½ years.​​

Answer 1

Answer:

pleasessssssssssss#sssssss

Answer 2

Answer:

1. 3:4

Step-by-step explanation:

$1. \: \frac{x}{y} = \frac{4}{5} \\ \frac{y}{z} = \frac{15}{16}$

Multiplying both the terms -

$\frac{x}{y} \times \frac{y}{z} = \frac{4}{5} \times \frac{15}{16} \\ = > \frac{x}{z} = \frac{3}{4}$

So, x:z = 3:4