Tag: calculations and mental strategies 1
Questions Related to calculations and mental strategies 1
If $x$ toffees are distributed equally among $5$ children, then each child gets $5x$ toffees.
In a two digits number, the digit at tens place is $7$ times the digits at unit place, then the number is
$15$ years hence a men will be just $4$ times as old as he was $15$ years ago. His present age is _________ years
If the sum and the product of the digits of two digit number is the same, then the number is_____________
The number of different necklaces formed by using $2n$ identical diamonds and $3$ different jewels when exactly two jewels are always together is ____________.
20 years ago when my parents got married their average age was 23 years, now the average age of my family consisting of my self and my parents is 34 years, then my present age is?
If $12$ years hence of Ravi will he $9$ times his age $12$ years ago, find the present age of Ravi
$A$ is $3$ times as old as $B$ and $C$ together. If after $10$ years $A's$ age would be equal sum of the ages of $B$ and $C .$ find the present age of $A$
The number of students scoring less than 60 marks is ___________.
The number of students scoring less than 80 marks but not less than 40 marks is _______.