For the following questions answer them individually
Three bells ring at interval of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a particular time. They will ring together after every
f the sum of the digits of a three digit numberis subtracted from that number, then it will always be divisible by
The greater of the two numbers whose product is 900 and sum exceeds their difference by 30 is
The smallest fraction, which should be added to the sum of $$ 2 \frac{1}{2} , 3 \frac{1}{3} ,4 \frac{1}{4} and  5\frac{1}{5} $$ to make the result a whole number, isÂ
The sum of three positive numbersis 18 and their product is 162. If the sum of two numbersis equal to the third then the sum of squares of the numbersis
The sum of three consecutive even numbers is 28 more than the average of these three numbers. Then the smallest of these three numbers is
In a division sum, the divisor 'd' is 10 times the quotient 'q' and 5 times the remainder'r'. If r = 46, the dividend will be
