Question

arnab wants to buy a t - shirt which costs rs 250. he has rs 107 with him. if he cleans mr. sharmas garden he is paid rs 45 per day. how much more money does he need to buy the t - shirt and for how many days does he need to work so that he has enough money to buy the t - shirt? he needs rs. ( ) more to buy the t - shirt and he has to work for at least ( ) days to have enough money to buy the t - shirt.

Explanation:

Step1: Calculate money needed

Find the difference between the cost of the t - shirt and the money Arnab has.
$250 - 107=143$

Step2: Calculate number of days to work

Divide the money needed by the daily pay to find the number of days.
$\lceil\frac{143}{45}
ceil=\lceil3.177...
ceil = 4$ (using ceiling function as he needs to work whole days to have enough money)

Answer:

He needs Rs. 143 more to buy the t - shirt and he has to work for at least 4 days to have enough money to buy the t - shirt.