Question

Xtakes 5 days more than Y to do a certain job & 9 days more than Z.X&Y together can do the job in the same time as Z. How many days Xwould take to do it?​

Answer 1

Answer:

${\sf{\bold\green{\fcolorbox{grey}{grey}{✅\:\:Verified\:\:answer}}}}$ [(5-¹) × 4-¹]² [1/5 × 1/4]² [1/20] ² 1/400

Step-by-step explanation: