Question

# What is the length of a running truck? I. The truck crosses a woman in 13.5 seconds. II. The truck crosses a 360 metre long platform in 36 seconds.

A

if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question.

B

if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.

C

if the data either in Statement I or in Statement II alone are sufficient to answer the question.

D

if the data even in both Statements I and II together are not sufficient to answer the question.

E

if the data in both Statements I and II together are necessary to answer the question.

Solution

## The correct option is A if the data in both Statements I and II together are necessary to answer the question. Time taken by truck to cross a woman =Length of truckSpeed of truck⇒Speed=l13.5 ..... (i) Time taken by truck to cross =(Length of truck+Length of platform)Speed of the truck ⇒Speed=l+36036 .....(ii)   From (i) and (ii), we get l13.5=l+36036. Thus, length can be obtained. So both I and II are necessary to get the answer.

Suggest corrections