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Ages - Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Ages. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - The average age of a man and his son is 48 years. The ratio of their ages is 11:5 respectively. What will be ratio of their ages after 6 years
Answer : D
Explanation
Let the present ages of the man his son be 11x and 5x respectively. According to the question, 11x + 5x = 2*48 Or, 16x = 96 Or, x = 6 Therefore, present age of the man = (11*6) = 66 years Present age of the son = (5*6) = 30 years Hence required ration after 6 years = (66+6) : (30+6) = 72 : 36 = 2:1
Q 2 - The average age of 30 boys in a class is 15 years. One boy aged 20 years, left the class, but two new boys came in his place whose ages differ by 5 years. If the average age of all the boys now in the class still remains 15 years, the age of the younger newcomer is :
Answer : B
Explanation
Let the age of younger boy be x years. Therefore age of older boy = (x+5) years Then, total age of 30 boys = 30*15 = 450 years Total age of 31 boys after two newcomers join = 450 - 20 +x + x +5 = 435 + 2x From the question, 435 + 2x = 31 * 15 Or, 2x = 465 - 435 Or, x = 15 years
Q 3 - One year ago the ratio of Yamini?s and Gamini?s ages was 6 : 7 respectively. Four years hence this ratio would become 7 : 8. How old is Gamini?
Answer : D
Explanation
Let one year ago the ages of Yamini and Gamini be 6x and 7x years respectively. Therefore, present ages will be 6x + 1 and 7x + 1 years respectively. Now four years hence, (6x + 1 + 4) / (7x + 1 + 4) = 7/8 Or, (6x + 5) / (7x + 5) = 7/8 Or, 49x + 35 = 48x + 40 Or, X = 40 - 35 = 5 Hence Gamini's present age = 7x + 1 = 7*5 + 1 = 36 years
Q 4 - The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A?
Answer : C
Explanation
According to question, A + B = B + C + 12 A = C + 12 C = A - 12 Hence, C is 12 years younger to A.
Q 5 - What should be the present age of a man if the given condition is such as 15 year hence , a men will be 4 times as old as he was before the period of 15 year?
Answer : D
Explanation
Let man present age be x years. His age 15 year ago = (x-15) years. His age 15year hence = (x+15) years. (x+15) = 4(x-15) ⇒ 3x= 45 ⇒ x = 45
Q 6 - 18 year was the average age of A and B before the period of 3 year . if we add C in them , in that case the average become change and the new average is 22. What should be the present age of C?
Answer : A
Explanation
Sum of the ages of A and B , 3 years ago = (18*2) years =36 years Sum of the present age of A and B = (36+3*2) year = 42 years Sum of the present age of A, B and C = (22*3) = 66 years Present age of C = 66- 42 = 24 years
Q 7 - The product of Ram age 5 year ago with his age 7 years later is 28 . What should be the present age of mr. Ram ?
Answer : C
Explanation
If present age of ram is x years. then (x-5)*(x+7) = 28 ⇒ x2 +2x-35 = 28 ⇒ x2+2x-63 =0 ⇒ (x+9) (x-7) = 0 ⇒ x =7 ∴ 7 years is the present age of ram.
Q 8 - Yusuf is as much younger to ajay as he is older to pawan , if 48 year is the sum of ajay and pawan then what should be the present age of yusuf?
Answer : B
Explanation
Given A-Y = Y-P ⇒ A+P = 2Y Also A+P = 48 Year . so, 2j = 48 ⇒ y = 24 Hence, yusuf is 24 year old.
Q 9 - The sum of the ages of five girl born at the interval of 3 years each is 50 years. Find out the youngest girl age?
Answer : A
Explanation
Let the youngest girl age be x years. Then, X+(x+3) +( x+6) +(x+9) +(x+12) = 50 ⇒5x+30 = 50 ⇒ 5x= 20 ⇒ x =4 Required age = 4 yrs.
Q 10 - 15 year hence, a man will be just 4 times as old as he was 15 years ago . His present age is
Answer : A
Explanation
Let the present age of the men be x years. then (x+15) = 4(x-15) ⇒ 3x= 75 ⇒ x =25 Hence, the present age of the man is 25 years.