If the sum of five consecutive even numbers A, B, C, D and E is 130, what is the product of A and E ?
A). 660
B). 720
C). 780
D). 840
√(17)² + (17)² + (5)² - 2 = ?
A). 16
B). 17
C). 18
D). 19
(√6 + 1)² = ? + 2√6
A). 5
B). 6
C). 7
D). 8
(3² x 4² x 5) ÷ 36 = (?)² - 80
A). 10
B). 12
C). 14
D). 16
An urn contains 9 blue, 7 white and 4 black balls. If 2 balls are drawn at random, then what is the probability that only one ball is white ?
A). 89/190
B). 90/190
C). 91/190
D). 92/190