A 1m long vertical bar casts a 60cm long shadow. At the same time, the tower casts a 35 cm shadow. Determine the height of the tower.

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

answer is A.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Concept-
First, find the height of the vertical bar and its shadow ratio. Next, find the ratio of tower height to shadow. Then compare the ratios and simplify the equation to find the height of the tower.
To find Tower height. The height of the tower is x. The problem number is Next, find the ratio of the height of the vertical bar to its shadow.

Replace the height of the vertical bar from meters to centimeters.

Reduce the greatest common divisor of the numerator and denominator

Next, find the ratio of tower height to shadow.

Compare both ratios and make them equal.

Multiply the equation and

Therefore, the height of the tower is 70 cm.

Watch 3-min video & get full concept clarity