Teaching DSSSB TGT Mock Test 2025 Quantitative Aptitude Time and Work Work Efficiency

A and B can do a piece of work in 15 days and C and D can do same piece of work in 18 days. In how many days will A, B, C and D do the same piece of work together?

1

90/11 days

2

45/11 days

3

135/11 days

4

60/11 days

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