Sum of twice a fraction and 5 times its reciprocal is 7. What is the fraction?
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The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
The 3rd and 6th term of an arithmetic progression are 19 and 37 respectively. What is the 13th term?
Which of the following can't be the unit's digit of a perfect square?
If the sum of a number and its reciprocal be 2, then the number is
What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?
What will come in the place of the question mark (?) in the following number series?305, 338, 404, 503, 635 , (?)
Which of the following numbers is not a prime number?