Question

A school has 9 period a day each of 50 minute duration.How many period will there if the duration of every period reduced by 5 minutes​

Answer 1

Answer:

★ ANSWER :

The number of periods will be 10 when each period is shortened by 5 minutes.

Step-by-step explanation:

★ QUESTION :

A school has 9 period a day each of 50 minute duration.How many period will there if the duration of every period reduced by 5 minutes ?

★ SOLUTION

• CASE I (WHEN PERIODS ARE NOT SHORTENED)

Number of periods in a day = 9

Duration of each period = 50 minutes

Time consumed in 1 period = 50 minutes

Time consumed in 9 periods = 9 × 50 minutes

Time consumed in 9 periods = 450 minutes

• CASE II (WHEN EACH PERIODS ARE SHORTENED BY 5 MINUTES )

Let the number of periods in each day be x.

Duration of each period when each period is shortened by 5 minutes = 50 minutes - 5 minutes

Duration of each period when each period is shortened by 5 minutes = 45 minutes

Time consumed in 1 period = 45 minutes

Time consumed in x periods = 45 x minutes

• NOTE :

In both the cases the total time limit of the day will be same.

Therefore ,

45 x minutes = 450 minutes

→ x = 450 minutes / 45 minutes

→ x = 10

Therefore , the number of periods will be 10 when each period is shortened by 5 minutes.

★ ANSWER :

The number of periods will be 10 when each period is shortened by 5 minutes.

HOPE IT HELPS YOU !

THANKS !

Answer 2

Answer:

Step-by-step explanation:

A school has a period of 50-minute duration.

Time

2:30 to 4:30   2 Hours

each period is 50 minutes

How many periods will there be?