1.A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

A.1/4

B.1/10

C.7/15

D.8/15

2. A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?

A.8 hours

B.10 hours

C.12 hours

D.24 hours

3.A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?
A.40

B.50

C.54

D.60

.

4.If selling price is doubled, the profit triples. Find the profit percent.
A.66/2-3

B.100

C.105/1-3

D.120

A.3

B.4

C.5

D.6

A.7

B.8

C.9

D.10

7.The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be:
A.12YEARS

B.14 YEARS

C.18 YEARS

D.20 YEARS

A.76KG

B.76.5KG

C.85KG

D.Data Inadequate

E.None of these

A.35years

B.40years

C.50years

D.None of these

10.What should come in place of both

*x*in the equation x/128=162/x
A.12

B.14

C.144

D.196

A.6

B.06

C.77

D.87

12.9 persons can repair a road in 12 days, working 5 hours a day. In how many days will 30 persons, working 6 hours a day, complete the work?

A.10

B.13

C.14

D.15

13.A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

A.3.6

B.7.2

C.8.4

D.10

A.3.5 years

B.4 years

C.4.5 years

D.5 years

A.105

B.110

C.115

D.115.50

16.Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnered for 14 months, 8 months and 7 months respectively. What was the ratio of their investments?

A. 5 : 7 : 8

B. 20 : 49 : 64

C. 38 : 28 : 21

D. None of these

17.It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010?
A. Sunday

B. friday

C. saturday

D. wednesday

18.What will be the day of the week 15^{th}August, 2010?

A.Sunday

B.Monday

C.Tuesday

D.Friday

A.Wednesday

B.Saturday

C.Tuesday

D.Thursday

20.The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:

A.40%

B.42%

C.44%

D.46%

A.9944

B.9988

C.9768

D.8888

.

22.Which of the following is a prime number ?
A.33

B.93

C.81

D.97

*a*and

*b*are odd numbers, then which of the following is even ?

A.a+b

B.ab

C.a+b+1

D.ab+2

.

24.The sum of how may tersm of the series 6 + 12 + 18 + 24 + ... is 1800 ?
A.16

B.24

C.20

D.18

E.22

25.What decimal of an hour is a second ?

A..0025

B..00027

C..0256

D..000126

A.0.172

B.17.2

C.1.72

D.172

27.What is the probability of getting a sum 9 from two throws of a dice?

A.1/6

B.1/9

C.1/8

D.1/12

A.1/3

B.7/19

C.9/21

D.3//4

E.8/21

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