Edmund spent 35 of his money on crayons and 12 of the remainder on colour pencils.If he spent $18 on crayons, how much did he spend on colour pencils?

A man went to market with Ra.100.With that money he can buy 15 pencils or 25 pens.He kept 15% of that money for bus fare and with rest of the money he purchased 5 pencils,and 'x' pens. How many pens he purchased?

Ruben wants to buy a dictionary that costs $15, a dinosaur book that costs $16, and a children's cookbook that costs $6. He has saved $8 from his allowance. How much more money does Ruben need to buy all three books?

Richard wants a paintbrush that costs $2.25, a set of paints that costs $4.75, and an easel that costs $17.75. Richard already has $2.40. How much more money does Richard need?

. A pen and 12 erasers cost $17.70. A pen and 15 erasers cost $20.40. How much do 6 pens cost?

Tara is buying some supplies for the new school year.She buys an exercise book for $$$6.22, a pack of pens for $$$8.17 and a pencil case for $$$7.23.How much does she spend in total?