If cost of 12 pens is ₹ 84, then what is the cost of 10 such pens ?

A lorry uses 80 litres of fuel on a trip of 280 kilometres.

How much fuel would the same lorry use on a trip of 196 kilometres?

In a race , Ravi covers 5 km in 20 min. How much distance will he cover in 100 min ?

25 men can reap a field in 12 days, in how many days can 15 men reap the same field?

A tree is 12 m tall and casts an an 8 m long shadow. At the same time, a flag pole caste a 100 m long shadow. How long is the flag pole ?

If cost of 24 oranges is ₹ 72, then find out the cost of 120 oranges.

It takes a photocopier 16 seconds to produce 12 copies.

How long will it take to produce 30 copies?

If 45 m of a uniform rod weight 171 kg, then what will be the weight of 12 m of the same rod ?

2. A man pays ₹ 13,000 as rent for 4 months. How much does he pay for the whole year, if rent per month remains the same?