An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metres of cloth (M.B.A. 2003)

Answer:

A) 178

B) 195

C) 204

D) 488

Explanation:

Let the required time be x seconds. Then, More metres, more time (Direct Proportion)

A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be : (M.B.A. 2002)

Answer:

A) 10 m

B) 12.5 m

C) 17.5 m

D) 21.25 m

Explanation:

Let the height of the building be x metres.

Less lengthy shadow, Less is the height (Direct Proportion)

∴ 40.25 : 28.75 : : 17.5 : x ⇔ 40.25 × x = 28.75 × 17.5