What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?
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The sum of a non-zero number and thrice its reciprocal is 52/7. Find the number.
The sum of three consecutive even integers is 84. Which is the least integer among them?
What is the sum of the first 11 terms of an arithmetic progression if the 4th term is 11 and the 7th term is -4?
The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
What is the value of 2 consecutive natural numbers, sum of whose squares is 145?
What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?
A number is greater than twice its reciprocal by 31/4. Find the number.