Skip to main contentSkip to solution

Raj, Mayank and Neer, can complete a work in 30, 35 and 28 days, respectively.

Consider the following statements.

(A) Raj and Mayank, together will complete the work in 21013\frac{210}{13} days.

(B) Mayank, and Neer, together will complete the work in 1403\frac{140}{3} days.

(C) Raj and Neer, together will complete the work in 42029\frac{420}{29} days.

(D) Raj, Neer, and Mayank, together will complete the work in 42041\frac{420}{41} days.

Choose the correct answer from the options given below:

Solution

✅ Correct Option: 4

Raj ++ Mayank: 130+135=13210\frac{1}{30} + \frac{1}{35} = \frac{13}{210}, so 21013\frac{210}{13} days, and (A) is correct.

Mayank ++ Neer: 135+128=9140\frac{1}{35} + \frac{1}{28} = \frac{9}{140}, so 1409\frac{140}{9} days, not 1403\frac{140}{3}; (B) is wrong.

Raj ++ Neer: 29420\frac{29}{420}, giving 42029\frac{420}{29} days, so (C) is correct.

All three: 41420\frac{41}{420}, giving 42041\frac{420}{41} days, so (D) is correct.

Keyboard Shortcuts

  • Left arrow: Previous question
  • Right arrow: Next question
  • S key: Jump to solution
  • Q key: Jump to question