Question 86

The sum of the ages of a father and son is 45. Six years ago, their ages were in the ratio 10 : 1. How old will the son be after six years?

Solution

F + S= 45..... (1)

before 6 years

F -6 + S -6 = 10X + X

F + S - 12 = 11X........(2)

PUT ( 1) IN (2)

45 -12 = 11X

3 = X

X is the age of son before 6 years = 3

so present age = 3 + 6 = 9 years

so the age after 6 years = 9 + 6 = 15 years

Create a FREE account and get:

Download RRB Study Material PDF
45+ RRB previous papers with solutions PDF
300+ Online RRB Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Averages Questions CAT Number Systems Questions CAT Venn Diagrams Questions CAT Remainders Questions CAT Averages Mixtures Alligations Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Quant Based DI Questions CAT Puzzles Questions CAT Data Interpretation Basics Questions CAT DI with connected data sets Questions CAT Maxima-Minima Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Para Jumbles Questions CAT Odd One Out Questions CAT Miscellaneous Questions CAT Para Summary Questions CAT Reading Comprehension Questions

Follow us on

Boost your Prep!

Download App