The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
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What least number must be added to 213, so that the sum is completely divisible by 9?
The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?
Find the average of all prime numbers between 20 and 50.
In what ratio is the segment joining (-1,-12) and (3,4) divided by the x-axis?
In ΔABC measure of angle B is 90°. If cosecA = 13/12, and AB = 10cm, then what is the length (in cm) of side AC?
What is the least number that can be multiplied to 69120 to make it a perfect cube?
Which smallest number must be subtracted from 400, so that the resulting number is completely divisible by 7?