Which of the following is not a Triangular number?
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The 3rd and 8th term of an arithmetic progression are -14 and 1 respectively. What is the 11th term?
A missile travels at 1278 km/h. How many metres does it travel in one second?
Find the mean proportional between 2 and 98?
The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is
If (tanA - tanB)/(1 + tanAtanB) = x, then the value of x is
A bag contains coins of denominations Rs.1, Rs.5 and Rs.10. Assuming there are equal number of Rs.1, Rs.5 and Rs.10, what will be the total number of coins in the bag be if the total money is Rs. 368?
If 2x - 5y = 5 and 2x - y = 9, then x - y is ______.