For construction, a certain amount of wire was being shipped, out of which 10% &

Question

For construction, a certain amount of wire was being shipped, out of which

10 %

was stolen. After using

85 %

of the remainder, 472.5 m of wire was left. How much wire was initially shipped?

Options:

A . 5000 m

B . 4000 m

C . 3250 m

D . 3500 m

Answer: Option D
:
D
Take a middle answer option and verify the answers.
Initial = 3500
Amount left after being stolen

= 0.9 \times 3500 = 3150

Amount left

= 15 % o f 3150 = 472.5

2nd method:- Let the total length of original wire = x
Remaining wire

= 100 % - 10 % (S t o l e n w i r e) = 90 %

. After using

85 %

of remaining wire,

15 %

of remaining wire was left.

15 % o f 90 % 0 f x = 472.5

0.135 o f x = 472.5 \Rightarrow x = 3500.

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