NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics: Questions 379 - 385 of 425

Access detailed explanations (illustrated with images and videos) to 425 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 300.00 or

How to register?

Question number: 379

» Percentage

Edit
MCQ▾

Question

The length of a rectangle is decreased by 10 % and its breadth is increased by 5%. By what percent its area changed?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 380

» Fundamental Arithmetical Operations

Edit
MCQ▾

Question

If ( ) is 10 more than ( ) and ( ) is 4 less than ( ), then ( ) is

Choices

Choice (4)Response

a.

b.

1.5

c.

d.

Question number: 381

» Time and Distance

Edit
MCQ▾

Question

A man travels a distance of 30 km at 6 km/hr another distance of 30 km at 5 km/hr and a third distance of 30 km at 10 km/hr. his average speed for the whole journey (in km/hr) is

Choices

Choice (4)Response

a.

8

b.

c.

d.

9

Question number: 382

» Decimals & Fractions

Edit
MCQ▾

Question

When simplified, the product

gives

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 383

» Average

Edit
MCQ▾

Question

The average marks of 60 students in a test is 80. Later it is found that three marks 76,74& 80 were wrongly entered as 75,76 & 86. The average marks after mistakes were rectified is

Choices

Choice (4)Response

a.

b.

79.67

c.

72.44

d.

79.88

Question number: 384

» Decimals & Fractions

Edit
MCQ▾

Question

LCM of 0.10, and is

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 385

» Speed and Time

Edit
MCQ▾

Question

A person divides his total distance of journey into three equal and decides to travel the three parts with speeds of 10,20 and 30 km/hr. find his average speed. (In km/hr)

Choices

Choice (4)Response

a.

b.

58.16

c.

16.36

d.

Developed by: