Is the integer x divisible by 6 ? (1) x + 3 is divisible by 3. (2) x + 3 is an odd nu...
Ann bought five different kinds of fruit: apples, oranges, pears, mangoes, and bananas. If the number of apples that Ann bought was twice the number of oranges and if the number of pears that Ann boug...
Introduced by Italian merchants resident in London during the sixteenth century, in England life insurance remained unti...
Neuroscientists, having amassed a wealth of knowledge over the past twenty years about the brain and its developmen...
While studying the genetic makeup of corn, a new class of mutant genes was discovered by Barbara McClintock, a...