Recent content by tantrik

Dear friends, I am having problem solving the following question related to "bearing" in trigonometry. A motorboat is 10 km South of a lighthouse and is on a course of 053 degrees. What is the shortest distance between the motorboat and the lighthouse? My confusion is how does a boat travel...

Thanks for the solution

Dear friends, I am unable to solve the following scale factor problem. Will appreciate your help here. Thanks in advance. 'ET Pizza' produces two pizzas that are similar in shape. The smaller pizza is 20 cm in diameter and costs $10. The larger pizza is 30 cm in diameter. What is a fair cost...

No, this exactly how the question (diagram only, no other info about triangles or angles) has been provided by the math teacher in the school.

Thanks but is it possible to solve this question just by using geometry principles?

Dear friends, I am unable to find out the unknown angles for the following triangle which I attached with this post. Angle BAD and angle BCD are the unknown angles need to be calculated. Given that lines AB=BC=CD and angle CDE = 108 degrees From my calculations: angle ADC = 180 - 108 = 72...

Thanks for your explanation and working for the problem.

Dear friends, I am unable to solve the following problem. Will appreciate your help here. Thanks in advance. The Purple Mobile Phone Company offers the following two pricing plans to customers. Plan A costs \$15/month, with calls at 25c/minute, while Plan B costs \$100/month with calls at...

Great many thanks for your in-depth explanation towards the question. I got the correct answer this time. Especially this info has been the most useful - .

Dear friends, I am stuck at the following probability problem. Will appreciate your help. An office block has five floors (ground, 1, 2, 3 and 4), all connected by a lift. When it goes up to any floor (except 4), the probability that after it has stopped it will continue to rise is 3/4. When...

Thanks for the solution. Now I understand where the mistake was.

Dear friends, I am stuck at the following probability problem. Will appreciate your help. Two opera singers, Mario and Clarissa both perform on the same night, in separate recitals. The independent probabilities that two newspapers X and Y publish reviews of their recitals are given below...

Dear friends, I'm unable to solve the following probability question. Please help me solve it. Thanks in advance. The answer given in the book is: 5/9 [for part (b)]. Don't know even if the answer is correct. Suzi has taken up golf, and she buys a golf bag containing five different clubs...