KVPY Stream-SA (Class 11) Math: Questions 39 - 41 of 251
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Question number: 39
Appeared in Year: 2012
Two workers A and B are engaged to do a piece of work. Working alone, A takes 8 hours more to complete the work than if both worked together. On the other hand, working alone, B would need hours more to complete the work than if both worked together. How much time would they take to complete the job working together?
Question number: 40
Appeared in Year: 2014
On the circle with center O, points A, B are such that OA = AB. A point C is located on the tangent at B to the circle such that A and C are on the opposite sides of the line OB and AB = BC. The line segment AC intersects the circle again at F. Then the ratio ∠BOF: ∠BOC is equal to:
The line segment AC intersects the circle again at F.