Mathematics questions1

Mathematics multiple choice (objective )type questions and answers:-

1) Three numbers are in the ratio 1:2:3 and their HCF is 12. The numbers are

A)12,24,36

B)5,10,15

 C)4,8,12

D)10,20,30

Ans:A

2) Pipe A is an inlet pipe filling the tank at 8000l/hr. Pipe B empties the tank in 3 hours .The capacity of tank is

A)12000l

 B)8000l

 C)6000l

 D)4000l

Ans:C

3)A tap drips at a rate one drop /sec. 600 drops make 100ml. The number of litres wasted in300 days

A)4320000

B)432000

C)43200

 D)4320

Ans:D

4) The list price of a shirt is 440 and a customer pays 396 for it .the discount rate is

A)10%

 B)10.5%

C)20%

D)12%

Ans:A

5)A plate was sold for 6300 after giving two successive discounts of 12.5% and 10%. Find the marked price

A)7300

 B)7700

 C)8000

D)7250

Ans:C

6)Which of the following represents a correct  proportion?

A)12:9=16:12

B)15:6=11:3

C)2:6=1:9

D)1:5=2:3

Ans:A

7)Ram bought a number of orange at two for a rupee and an equal number at 3 for a rupee. To make a profit of 20% she should sell a dozen for

A)6

B)7

C)14

D)15

Ans:A

8) A and B are 20 km apart . A can walk at an average speed of 4 km/h and B at 6 km/h. If they   start walking towards each other  at 7 am, when they will meet?

A)8am

B)8.30am

C)9am

D)10am

Ans:C

9) If each angle of a triangle is less than the sum of other two, then the triangle is

A)obtuse angled

B)right angled

C)acute angled

D)equilateral

Ans:C

10)If angle bisector of of a triangle bisect the opposite side ,then what type of triangle is?

A)right angled

B)scalene

C)similar

D)isosceles

Ans:D

11)The graph x=a and y=b intersect at

A)(a,b)

B)(b,a)

C)(-a,b)

D)(a,-b)

Ans:A

12)In a mathematics examination, the numbers scored by five candidates are 5 successive odd integers. if their total mark is 185, the highest score is

A)39

B)43

C)41

D)37

Ans:C

13)A police man starts to chase a thief. When the thief goes 10 steps  the police man moves 8 steps . 5 steps of the police man equal to 7 steps of thief. the ratio of  the speeds of police man and thief is

A)20:15

B)22:24

C)28:25

D)21:15

Ans:C

14)The compound interest on a certain sum of money for 2 years at k% annum is 410. The simple interest on the same sum at the same rate and for the same time is

A)400
B)300
C)410
D)450

Ans:A

15) The perimeters of a circle, a square and an equilateral triangle are same and their areas are C,S,T respectively .Which of the following statement is true

A)C=S=T

B)C>S>T

C)C<S<T

D)S<C<T

Ans:B