DRDO Multi tasking staff Model paper 10

Let the total work be 96 units
Efficiency of Meena = 96/32 = 3 units/day
Efficiency of Sanju = 96/48 = 2 units/day
Suppose Meena and Sanju worked together for x days
Worked done by them = 5x
Remaining work = 96 – 5x
Now, this work is completed by Sanju in 24 days
According to the question,
⇒ 2 = (96 – 5x) /24
⇒ 48 = 96 – 5x
⇒ 48 = 5x
⇒x=

48

5

=9

3

5

∴ Meena left the work after 9

3

5

days