HCL Papers: Sample Questions 39 - 40 of 57

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Question number: 39

» Aptitude

MCQ▾

Question

In a straight highway two cars start from the same point in opposite directions each travels for 8 km and take left turn then travel for 6 km. What is the distance between them now?

Choices

Choice (4) Response

a.

16

b.

20

c.

25

d.

10

Answer

b.

Explanation

Two cars start from the same point in opposite directions and each travels for 8 km.

After then both took left turn and travel 6 km.

image showing Designed geometry

Image Showing Designed Geometry

Let the starting point of both cars is A.

One car move towards B and another car travel towards C.

Here, AB = AC = 8 km

After then both took left turn and travel 6 km.

From B one car travels towards D and from C another car travels towards E.

Here, BD = CE = 6 km

Applying Pythagoras theorem for triangle DBA,

Applying Pythagoras theorem for triangle ECA,

Distance between both the cars at end will be,

=

Question number: 40

» Aptitude

MCQ▾

Question

A warehouse had a square floor with area 10,000 sq. meters. A rectangular addition was built along one entire side of the warehouse that increased the floor by one-half as much as the original floor. How many meters did the addition extend beyond the original buildings?

Choices

Choice (4) Response

a.

50

b.

500

c.

10

d.

20

Answer

a.

Explanation

  • The square floor area of warehouse is 10,000 sq. meters.

Area of square =

Here, = 10000

Therefore, l = 100 m

  • All the sides of square are of 100 m.
  • A rectangular addition was built along one entire side of the warehouse that increased the floor by one half as much as the original floor.
  • So, the area of this rectangular addition will be 5000 sq. meters and its length will be 100 m.

Area of rectangle =

  • So, 50 m floor is extended.