Question

Veena and Reena were writing the same essay. Veena finished it in
7 by 16 of an hour and Reena
finished it in 8 by 18 of an hour. Who finished the essay first?
​

Answer 1

Answer:

The number of hours required by Reena alone to do remaining work is 3 hours and 45 minutes .

Step-by-step explanation:

Given as :

Meena , Reena and Anjum can complete piece of work in 8 hours

So, The work done by Meen =  

The work done by Reena =  

The work done by Anjum =  

Now, Meena and Anjum work for 3 hours

∴  x = 3

i,e The work done by Meena and Anjum for first 3 hours =  +  

Or,  The work done by Meena and Anjum for first 3 hours =  

or,  The work done by Meena and Anjum for first 3 hours =  

or,  The work done by Meena and Anjum for first 3 hours =  

Or, The work done by Meena and Anjum for first 3 hours =  

Now, The left work is done by Reena alone

So, The left work = 1 -  

Or, The left work is done by Reena alone =  

Or, The left work is done by Reena alone =  

Again

So, The number of hours required by Reena alone to do the work =  =  

Or,  =  

Or, x =  

∴  x = 3.75 hours

So,  The number of hours required by Reena alone to do remaining work = 3 hours and 45 minutes

Hence, The number of hours required by Reena alone to do remaining work is 3 hours and 45 minutes . Answer

Step-by-step explanation: