Question

On one day a rickshaw puller earned $80. Out of his earnings he spent $68/5 on tea and snacks, $51/2 on food and $22/5 on repairs of the rickshaw. How much did he save on that day?

Answer 1

rickshaw puller  earned =80
he spent on tea and snacks = 68/5
80-68/5 =66.4
he spent on food =51/2
66.4 -51/2 =40.9
he spent on repair on rickshaw =22/5
40.9 - 22/5 = 36.5
therefore he has 36.5 remaining 

Answer 2

total amount of money earned by rickshaw puller =$80

amount of money spent on tea=$68/5
amount of money spent on snacks=$51/5
amount of money spent on repairs of the rickshaw=$22/5.

total money spent on that day =68/5+51/5+22/5

=(68+51+22)/5
= 141/5

amount of money saved by the rickshaw puller=total amount earned-amount spent
80-141/5
=(400-141)/5
= 259/5
=51.8

so,$51.8 is saved by the rickshaw puller