The difference between the greatest and least five digit numbers formed by the digits 2,5,0,6,8 is (repetition of digits are not allowed)
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The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?
A number is greater than twice its reciprocal by 31/4. Find the number.
What is the value of 2 consecutive natural numbers, sum of whose squares is 145?
A number is greater than 58 times its reciprocal by 3/4. What is the number?
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?
Sum of twice a fraction and 5 times its reciprocal is 7. What is the fraction?