Generalised form of a 3-digit number abc is

1

(a)

a+ b + c

(b)

100a+10b+c

(c)

100c+10b+a

(d)

100b+10a+c

The usual form of 3000 + 500 + 60 + 3 is

1

(a)

3653

(b)

6353

(c)

3563

(d)

3365

If 5A + 15 is equal to B3. Then, the value of A+B is

1

(a)

15

(b)

16

(c)

8

(d)

7

Let abc be a 3-digit number, then abc-cba is not divisible by

1

(a)

9

(b)

11

(c)

18

(d)

33

If abc is a 3-digit number, then the number abc- a - b - c is divisible b

1

(a)

9

(b)

90

(c)

10

(d)

11

The generalised form of the number 52 is

1

(a)

\(10 \times 5+2\)

(b)

\(100 \times 5+2\)

(c)

\(10 \times 2+5\)

(d)

\(10 \times 5\).

The generalised form of the number 33 is

1

(a)

\(10 \times 3+3\)

(b)

\(10 \times 3\)

(c)

3+3

(d)

\(3 \times 3+3\).

The number 10 \(\times\) 7 + 5 in usual form is

1

(a)

57

(b)

75

(c)

55

(d)

77

The number 10 \(\times\) 2 + 7 in usual form is

1

(a)

72

(b)

22

(c)

77

(d)

27

The generalised form of the number 123 is

1

(a)

\(1 \times 100 +2 \times 10 +3\)

(b)

\(2 \times 100 +3 \times 10 +1\)

(c)

\(3 \times 100 +1 \times 10 +2\)

(d)

none of these.

3134673 is divisible by 3 and __________

1

(a)

9

The sum of a 2-digit number and the number obtained by reversing the digits is always divisible by ___________

1

(a)

11

If A x 3 =1A ,then A = __________

1

(a)

5

A 4-digit number abcd is divisible by 11, if d + b = _________ or _________

1

(a)

(a+c) or 12(a+c)

The difference of a 2-digit number and the number obtained by reversing its digits is always divisible by _________

1

(a)

9

A 2-digit number ab is always divisible by 2, if b is an even number.

1

(a) False

(b) True

If AB x 4 = 192, then A + B = 7.

1

(a) True

(b) False

Number of the form 3N \(\div\)2 will leave remainder 2 when divided by 3.

1

(a) False

(b) True

If a number a is divisible by b, then it must be divisible by each factor of b.

1

(a) False

(b) True

A 3-digit number abc is divisible by 6. If c is an even number, then a + b + c is a multiple of 3.

1

(a) False

(b) True