Multiple choice

The average age of Mr. And Mrs Bachchan at the time of their marriage in 1972 was 23 years. On the occasion of their anniversary in 1976, they observed that the average age of their family had come down by 4 years compared to the average age at the time of their marriage. This was due to the fact that their son Abhishek was born during that period. What was the age of Abhishek in 1980? (Family consists of the trio mentioned )

  1. 5

  2. 6

  3. 7

  4. 8
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In 1972, average age of 2 was 23, sum = 46. In 1976, they are 4 years older, sum = 46 + 8 = 54. The family (3 people) has an average age 4 years less than the 1972 average (23 - 4 = 19). Total age in 1976 = 19 * 3 = 57. Abhishek's age in 1976 = 57 - 54 = 3. In 1980, he is 3 + 4 = 7.

AI explanation

In 1972 the combined age was 2 times 23, or 46, which grew to 54 by 1976 for the two adults. The 1976 family average of 19 implies a total age of 3 times 19, which is 57. The son's age in 1976 was 57 minus 54, equaling 3. Four years later in 1980, his age was 3 plus 4, which is 7.

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