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Playing With Numbers

A four-digit number aabb is divisible by 55. Then possible value(s) of b is/are
(a) 0 and 2 (b) 2 and 5 (c) 0 and 5 (d) 7

Playing With Numbers

The sum of all the numbers formed by the digits x, y and z of the
number xyz is divisible by
(a) 11 (b) 33 (c) 37 (d) 74

Playing With Numbers

Let abc be a three-digit number. Then abc – cba is not divisible by
(a) 9 (b) 11 (c) 18 (d) 33

Playing With Numbers

The usual form of 1000a + 10b + c is
(a) abc (b) abco (c) aobc (d) aboc

Playing With Numbers

Generalised form of a two-digit number xy is
(a) x + y (b) 10x + y (c) 10x – y (d) 10y + x

Playing With Numbers

Generalised form of a four-digit number abdc is
(a) 1000 a + 100 b + 10 c + d
(b) 1000 a + 100 c + 10 b + d
(c) 1000 a + 100 b + 10 d + c
(d) a × b × c × d

Playing With Numbers

Suppose that the division x ÷ 5 leaves a remainder 4 and the division x ÷ 2 leaves a remainder 1. Find the ones digit of x.

Playing With Numbers

A three-digit number 42x is divisible by 9. Find the value of x.

Playing With Numbers

In question, state whether the statement are true (T) or false (F).

If a number is divisible by 2 and 4, then it will be divisible by 8.

Playing With Numbers

In question, state whether the statement are true (T) or false (F).

Let ab be a two-digit number, then ab + ba is divisible by 9.