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Questions(204)

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A four digit number N is of the form XYZZ

Each letter stands for a digit. The successor of N is of the form XPQQ

The predecessor of N is of the form XYZU

Can you find the value of Z+Q+U

view details (1 answer)Each letter stands for a digit. The successor of N is of the form XPQQ

The predecessor of N is of the form XYZU

Can you find the value of Z+Q+U

How many numbers are there between $100$ and $1000$ which have exactly one of their digits is $7\ ?$

view details (1 answer)if $x=\left(a+\sqrt{a^2+b^3}\right)^{1/3}+\left(a-\sqrt{a^2+b^3}\right)^{1/3},$ then what is value of $x^3+3bx-2a?$

view details (1 answer)What will be the remainder when $495149514951\cdots$ up to $900$ digits is divided by $101?$

view details (1 answer)The difference between the two digits of a number less than $100$ is $2.$ If $\dfrac{3}{2}$ times the sum of the digits be diminished from it, the digits will be reversed. Find the number.

view details (1 answer)A number consists of two digits, the digits in the ten’s place exceeds that in the unit’s place by $5$ and if $5$ times the sum of the digits be subtracted from the number, the digits will be reversed. Find the number.

view details (1 answer)A certain number of two digits is equal to five times the sum of the digits. Three times the larger digit exceeds three times the smaller by three. Find the number.

view details (1 answer)