2013 RRB Allahabad

Question 67

There are 7 pentagons and hexagons in a chart If the total number of sides is 38 then the number of pentagons is

Solution

Let there be x pentagons and 7-x hexagons.

Total sides = 5x + 6(7-x) = 38

Solving we get x = 4


Create a FREE account and get:

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

cracku

Boost your Prep!

Download App