Explanation

Given:

• Length of each train = 150 m

• Total length to cross = 150 m + 150 m = 300 m

• Time taken to cross = 15 seconds

• Trains are moving in opposite directions at the same speed

 Step 1: Use the formula

Relative speed= Total distance/Time ​= 300 / 15​ = 20 m/s

Since both trains have the same speed and are moving in opposite directions:

Relative speed=v+v=2v=20 m/s⇒v=20​/2=10 m/s

Step 2: Convert to km/h

$$1 text{m/s} = 3.6 text{km/h} Rightarrow 10 text{m/s} = 10 times 3.6 = 36 text{km/h}$$

Explanation

Explanation

In given ratio 3 : 4

3 is antecedent 

4 is consequent.

Explanation

Polynomials are sums of terms of the form k⋅xⁿ, where k is any number and n is a positive integer.

For example, 3x+2x-5 is a polynomial.

Explanation

40/20 = 2 

60/20 = 3

The 40:60 ratio simplified is 2:3 or 2/3 

Explanation

Solve 7n + 12 = 4n + 27

= 7n - 4n + 12 - 27

= 3n + 12 

= 3n - 15 

15 = 3n

15/ 3 = n 

n =  5 

Explanation

flag Length 40 Cm &  Width 60 cm Ratio 3:2

         60 : 40

          6  :  4

           3  :  2

Explanation

45/100 = 45%

Explanation

In question asking about those voters who caste vote not about those who did not caste . So , in that sense answer will be 66.66 percent 50000/75000*100

Explanation

A ratio can be written in three different ways:

with the word “to”: 3 to 4.

as a fraction: 3/4

.with a colon: 3 : 4.