Maths Week Day 2

Maths week Day 2: Tuesday Question 1: A father said to his son, "I was the same age that you are now at the time of your birth". If the father's age is 38 years now, the son's age five years back was: A. 14 years B. 19 years C. 33 years D. 38 years
Question 2: Which one of the following is not a prime number? A. 31 B. 61 C. 71 D. 91 Yesterday's answers: Question 1: Answer: Option B Explanation: Cost Price (C.P.) = € (4700 + 800) = € 5500. Selling Price (S.P.) = € 5800. Profit = (S.P.) - (C.P.) = €.(5800 - 5500) = € 300. % Profit = (300 x 100)/5500 % = 5 5/11 % Question 2: Answer: Option C Side increases from 100% to 120% 120% as a decimal = 1.2 Area = L x W = 1.2 x 1.2 = 1.44 i.e. 144% and area increased by 44%
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