Question

In the year 2000, Monu was 3 times his sister's age. In 2010, he was 24 years older than her. Find Monu's age in 2010.

• A. 62 years
• B. 46 years
• C. 38 years
• D. 52 years

Answer 1

Answer:

B. 46 years

ratio of monu and sister in 2000$=3:1$

after 10 years difference between monu and sisteris 24

$(3x+10)-(x+10)=24$

$3x+10-x-10=24$

$2x=24$

$x=12$

monu age in 2010$=3x+10=3\times12+10=36+10=46$