Question

Rajan and Manas spent time each 2 ½ hour and 3 ½ hour to complete a work. Then how much time they will take to complete that work with together?

Answer 1

Step-by-step explanation:

Rajan = 2½= 150mins

manas = 3½ = 210 mins

we have to fix the work, then only we can find the total days,

take LCM for 150,210= 1050= TOTAL WORK

Capacity = work/time

we have to find capacity of each ,

A = 1050/150 = 7 units

B = 1050/210= 5 units

total = 12 units

time = 1050/12 = 87.5mins

=1.27 hrs = 1 ⁹/20 hrs