The 4th and 7th term of an arithmetic progression are 11 and -4 respectively. What is the 15th term?
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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?
By what least number should 1200 be multiplied so that it becomes a perfect square?
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)
If the sum of a number and its reciprocal be 2, then the number is
Which of the following can't be the unit's digit of a perfect square?
What will come in the place of the question mark (?) in the following number series?305, 338, 404, 503, 635 , (?)
ΔABC is right angled at B. BD is an altitude. DC = 9 cm and AC = 25 cm. What is the value of BC (in cm)?