Question

1/5 part of pole is inside the mud, 2/3 part is inside the water and the remaining length of 10m is above the surface of the water. Find the length of the pole .

Answer 1

75m

Explanation:

• let X be the length of the pole
• 1/5 of the pole is in water so =1/5X
• 2/3 of the pole is in mud= 2/3X
• 10m is above the pole
• length of the pole (X)= length of pole in mud+length of pole in water+length of pole in air
• X(m)=1/5X+ 2/3X+10
• X- 13/15X=10
• 2X= 10x15
• X=75m