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Snehil

Aug 17, 2013



Snehil

Aug 19, 2013



Sauravkumar

Aug 6, 2013



Snehil

Jul 11, 2013

#### After 12years manoj will be 3 times as old as he was 4 years ago find his present age



Solution:
Let the present age of Manoj = x years
His age before 4 years = (x - 4)
His age after 12 years = (x + 12)
As per the question:
â‡’  ...

Snehil

Aug 17, 2013



Snehil

Aug 17, 2013



Snehil

Aug 19, 2013



Snehil

Aug 14, 2013

#### if 4/5 of cistern is filled in 1 minute ,how much time will be required to fill the empty cistern



Solution:
Time taken to fill 4/5  of cistern = 1 min.
By unitary method:
Time taken to fill the one empty cistern = 1 x 5/4 =5/4 min = 1 min 15 sec.

Snehil

Aug 17, 2013



Snehil

Aug 17, 2013



Snehil

Aug 17, 2013



Snehil

Aug 19, 2013



Sauravkumar

Aug 6, 2013



Snehil

Jul 11, 2013

#### After 12years manoj will be 3 times as old as he was 4 years ago find his present age



Solution:
Let the present age of Manoj = x years
His age before 4 years = (x - 4)
His age after 12 years = (x + 12)
As per the question:
â‡’  ...

Snehil

Aug 17, 2013



Snehil

Aug 17, 2013



Snehil

Aug 19, 2013



Snehil

Aug 14, 2013

#### if 4/5 of cistern is filled in 1 minute ,how much time will be required to fill the empty cistern



Solution:
Time taken to fill 4/5  of cistern = 1 min.
By unitary method:
Time taken to fill the one empty cistern = 1 x 5/4 =5/4 min = 1 min 15 sec.

Snehil

Aug 17, 2013