Question
If a and b are two real numbers such that b > a, ab < 0,
the sum of their squares is 458 and the difference between their squares is 120, then find the value of a - b.Solution
a2 + b2 = 458 ------- (i) a2 - b2 = 120 ------- (ii) By adding (i) and (ii), 2a2 = 578 a = ± 17 b = ± 13 We know, b > a and ab < 0. So, a = - 17 and b = 13 Thus, => a - b = - 17 - 13 = - 30Â
If ‘534’ = ‘50’, ‘758’ = ‘138’, ‘3156’ = ‘71, then ‘4738’ = ?
If 66 @ 26 = 15' and 44 @ 6 = 12', then 56 @ 12 = ?'. What will come in place of question mark?Â
Select the option in which the words share the same relationship as that shared by the given pair of words.
Bone : Osteoporosis
If GO = 715 and POT = 161520, then MOTH =
Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster.
<...Which of the following will best complete the relationship given below?
LMW: NIT :: QEG :?
Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is relat...
- ‘Earthquake’ is related to ‘Seismograph’, in the same way as ‘Blood Pressure’ is related to ‘____’.
If 35 @ 18 = 66 and 49 @ 22 = 136, then 23 @ 44 = '?'.
Select the option that can replace the question mark (?) in the given figure and complete the pattern (rotation is NOT allowed)
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