Michelle drove 3 hours longer than Timoty at an average speed 2 kilometers per hour faster than Timoty. Wulan drove 6 hours longer than Timoty at an average speed 4 kilometers per hour faster than Timoty. If Michelle drove 70 kilometers more than Timoty, then how many more kilometers did Wulan drive than Timoty?

Following chart shows experience (in years) for employees working in an organization. Employees with experience of 6 years and above are considered senior staff, while rest are considered junior staff. Find the number of junior staff in the organization.

Fauzi sells his two cars at the rate of Rp 1 lacs each. On one car he gains 2% while on other car he incurs a loss of 2%. Find his total loss/gain in whole transaction.

Aldi and Farel can finish a work in 5 and 4 days respectively. If this work is done by both of them on alternate days (starting with Aldi), how long will it take for them to finish the work?