For 100 km, a taxi charges ₹ 1 ,800. How much will it charge for a journey of 120 km ?

If 27 identical articles cost ₹ 1,890, how many articles can be bought for ₹ 1,750 ?

6 notebooks cost ₹ 156, find the cost of 54 such notebooks.

22 men can dig a 27 m long trench in one day. How many men should be employed for digging 135 m long trench of the same type in one day ?