Closure property is not true for division of rational numbers because of the number

(a)

0

(b)

-1

(c)

0

(d)

\(\frac { 1 }{ 2 } \)

\(\frac { 1 }{ 2 } \times \left( \frac { 1 }{ 3 } +\frac { 1 }{ 4 } \right) =\left( \frac { 1 }{ 2 } +\frac { 1 }{ 3 } \right) +\frac { 1 }{ 4 } \)

(a)

Closure property

(b)

Associative property

(c)

Distributive property

(d)

Commutative property

\(\pi\) is a ________ number

(a)

rational

(b)

irrational

(c)

whole

(d)

natural

Perimeter of a sector is

(a)

\(\frac{lr}{2}\)

(b)

\(\frac{l+r}{2}\)

(c)

l+2r

(d)

\(\pi\)+2

If the area of a rectangular land is(a² - b² )− sq.units whose breadth is (a - b) then, its length is__________

(a)

a - b

(b)

a + b

(c)

a²- b

(d)

(a + b)²

Volume of the rectangle 1 = 2ab, b = 3ac and h = 2ac is _________.

(a)

12a²bc²

(b)

12a²bc

(c)

12a² bc

(d)

2ab + 3ac + 2 ac

On dividing 57p² qr by 114 pq we get __________.

(a)

\(\frac{1}{4}\)pr

(b)

\(\frac{3}{4}\)pr

(c)

\(\frac{1}{2}\)pr

(d)

2pr

A man buys an article for Rs.150 and makes overhead expenses which are 12% of the cost price. At what price must he sell it to gain 5%?

(a)

Rs. 180

(b)

Rs. 168

(c)

Rs. 176.40

(d)

Rs. 85

The difference between compound and simple interest on a certain sum of money for 2 years at 2% p.a is Rs 1. The sum of money is___________.

(a)

Rs.2000

(b)

Rs.1500

(c)

Rs.3000

(d)

Rs.2500

(a) \(\frac { x }{ 2 } \) = 10     (i) x = 4
(b) 20 = 6x – 4   (ii) x = 1
(c) 2x – 5 = 3 – x  (iii) x = 20
(d) 7x – 4 – 8x = 20  (iv) x = \(\frac { 8 }{ 3 } \)
(e) \(\frac { 4 }{ 11 } \)- x = \(\frac { -7 }{ 11 } \)   (v) x = –24

(a)

(i), (ii), (iv), (iii), (v)

(b)

(iii), (iv), (i), (ii), (v)

(c)

(iii), (i), (iv), (v), (ii)

(d)

(iii), (i), (v), (iv), (ii)

Every 3rd number of the Fibonacci sequence is a multiple of _______

(a)

2

(b)

3

(c)

5

(d)

8

Find the correct answer from the four alternatives given.
In a certain code, ‘M E D I C I N E’ is coded as ‘E O J D J E F M’, then how is ‘C O M P U T E R’ written in the same code?

(a)

C N P R V U F Q

(b)

C M N Q T U D R

(c)

R F U V Q N P C

(d)

R N V F T U D Q

By what number should (-4)^-1 be multiplied so that the product becomes 10^-1?

(a)

\(\cfrac { 2 }{ 3 } \)

(b)

\(\cfrac { -2 }{ 5 } \)

(c)

\(\cfrac { 5 }{ 2 } \)

(d)

\(\cfrac { -5 }{ 2 } \)

 In a class interval the upper limit of one class is the lower limit of the other class. This is ________series.

(a)

Inclusive

(b)

exclusive

(c)

ungrouped

(d)

none of these

The best shopping choice is

(a)

always shop at brand name stores

(b)

the same thing my friends bought

(c)

compare the choices before buying

(d)

always buy at a regular shop