Quant Question Of The Day: 257
In a group of boys and girls, some people are graduates and other are not. 40% of graduates and 70% of non-graduate are boys. If there are total 40% girls in the group then what is the percent of graduates in the group.
- 33.33%
- 66.66%
- 50%
- 55.5%
Solution for Quant Question of the day: 256
They meet after 6 days (lcm of 2 and 3) or after 6n days
and Wednesday will come after 3 days or 7k+3 days
so 7k+3 = 6n (where k and n are integers)
k = 3 , then, n =4
hence they will meet after 7(3)+3 = 24 days for first time on a wednesday
and then after 42 days (lcm of 6 and 7), they will again meet (for 2nd time) on a Wednesday. It means after 66 days Viraj will have 2 crystals.
See our Previous Quant Question of the day
lets total people be 100 those who grad be x now those who did not…(100-x)
boys=0.4x+70-0.7x
70-0.3x=60
x=100/0.3
(option approach is easier)