A firm wishes to transport 1500 packages using large vans which carry 100 packages each and small vans which can carry 50 packages each. The cost of engaging large van is ₹400 and small van is ₹100 and not more than ₹5,000 can be spent on job. Also, number of large vans can't exceed the number of small vans. Formulating an LPP we get ?

$2x+y≤30; 4x+y ≤50; x ≤ y; x, y ≥ 0$