Question

a student has to secure 35% marks to pass in a test he got 80 marks and failed by 60 marks find the maximum marks of the test ​

Answer 1

Answer:

The Answer is 140 marks.

Hope it helps you.

Answer 2

The length of the train is 500m

Explanation:

Given:

1. A train running at a speed of 60km/hr

2. Crosses a pole in 30 seconds

To find:

The length of the train

Formula:

Distance = Speed × Time

x km/hr = x×(5/18)m/sec

Solution:

==> Speed = 60 km/hr

==>  Time = 30 sec.

==> Time is in seconds

==> Speed is in km/hr

==> Convert speed in km/hr to m/s

==> x km/hr = $x\frac{5}{18}$ m/sec

==> 60 km/hr = $\frac{60\times5}{18}$   m/sec

==> 60 km/hr = $\frac{20\times5}{6}$  m/sec

==> 60 km/hr = $\frac{10\times5}{3}$  m/sec

==> 60 km/hr = $\frac{50}{3}$  m/sec

==> Speed =  $\frac{50}{3}$  m/sec

==> Time = 30 sec

==> Apply the speed and time in the formula

==> Distance = Speed × Time

==> Distance =  $\frac{50}{3}$  × 30

==> Distance = 50 ×10

==> Distance = 500 m

The length of the train is 500m