36 .

The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is:

The product of two numbers is 120 and the sum of their squares is 289. The sum of the number is:

A.20

B. 23

C. 169

D.None of these

View AnswerAns: 23
37 .

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?

The salaries A, B, C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are allowed respectively in their salaries, then what will be new ratio of their salaries?

A.3 : 3 : 10

B. 10 : 11 : 20

C. 23 : 33 : 60

D.Cannot be determined

View AnswerAns: 23 : 33 : 60
38 .

A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?

A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods train?

A.230 m

B. 240 m

C. 260 m

D.270 m

View AnswerAns: 270 m
39 .

An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

A.2%

B. 2.02%

C. 4%

D.4.04%

View AnswerAns: 4.04%
40 .

In how many different ways can the letters of the word [DETAIL] be arranged in such a way that the vowels occupy only the odd positions?

In how many different ways can the letters of the word [DETAIL] be arranged in such a way that the vowels occupy only the odd positions?

A.32

B. 48

C. 36

D.60

View AnswerAns: 36