Subject
Bank Exam
Topic
Social Islami Bank Ltd. - Probationary Officer - 2017
The maximum recommended pulse rate R, when exercising, for a person who is x years of age is given by the equation R = 176 - 0.8x. What is the age, in years,of a person whose maximum recommended pulse rate when exercising is 140 ?
The maximum recommended pulse rate R, when exercising, for a person who is x years of age is given by the equation R = 176 - 0.8x. What is the age, in years,of a person whose maximum recommended pulse rate when exercising is 140 ?
ক)
40খ)
45গ)
50ঘ)
55Explanation
Solution: প্রশ্নে বলা হচ্ছে যে, x বছর বয়সের একজন লোক যখন Exercise করে তখন তার Pulse এর সমীকরণ হলো R = 176 - 0.8x, যেখানে R সর্বোচ্চ Pulse rate নির্দেশ করে । একজন ব্যক্তির Exercising এর সময় Pulse rate 140 হলে তার বয়স কত ? দেয়া আছে, Maximum pulse rate R = 140 এবং x = বয়স । অতএব, R = 176 - 0.8x => 140 = 176 - 0.8x => 0.8x = 176 - 140 = 36 x = 36/0.8 = 45Related questions
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