Question

A printing machine can print 150 sheets for every 3 minutes find
a. The time taken of print 3000 sheets .
b. How many sheets can be printed in 1 hole 1/2 hour.

Answer 1

● Maths ●

a. Time taken by printing machine to print 150 sheets = 3 minutes

Time taken to print 1 sheet = 3/150 = 1/50 minutes

Time taken to print 3000 sheets = 3000 × 1/50 = 60 minutes

b. 1 and half hour = 60 + 30 = 90 minutes

Sheets printed in 1 minute = 150/3 = 50 sheets

Sheets printed in 1 and half hours ,that is, 90 minutes = (90 × 50) = 4500 sheets

Answer 2

Answer:a.Time taken by the printing machine to print 3000 sheets is 60 minutes.

             b.The number of sheets printed by printing machine in 1 and half hour (90 minutes) is 4500 sheets.

Step-by-step explanation:

Given:A printing machine can print 150 sheets for every 3 minutes.

To find:a. The time taken of print 3000 sheets .

            b. How many sheets can be printed in 1 hole 1/2 hour.

Explanation:

Step 1:As time taken by the printing machine to print 150 sheets = 3 minutes.

∴Time taken by the printing machine to print 1 sheet $=$ $\frac{1}{50}$ minutes

Step 2:To get time for print 3000 sheets we have to multiply 3000 by $\frac{1}{50}$

So we have,

i.e.Time taken by the printing machine to print 3000 sheets $= 3000$ × $\frac{1}{50}$

                                                                                                   $= 60$ minutes.

∴Time taken by the printing machine to print 3000 sheets is 60 minutes.

Step 3:As we know that 1 hour = 60 minutes                

                         1 and half hour $= 60+30 = 90$ minutes

∵The printing machine can print 150 sheets in every 3 minutes

∴The number of sheets printed by printing machine $=$ $\frac{150}{3}$

                                                                                       $= 50$ sheets  

So.The number of sheets printed by printing machine in 1 and half hour (90 minutes)$= 90$ × $50$

                     $= 4500$ sheets

∴The number of sheets printed by printing machine in 1 and half hour (90 minutes) is 4500 sheets.

#SPJ2        

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