Question

Aman decided to go for a moming walk every day. He decided to walk for 10 minutes on the first day and increased the time by five minutes each day. On which day wil
he be able to walk for 135 minutes?

Options
22nd day
24th day
26th day
28th day​

Answer 1

Answer:

28 th day

Step-by-step explanation:

as she decides to walk 10 min on first day and then increase 5 min each day ...

Answer 2

Given,

The time Aman decided to spend on walking on the first day = 10 minutes

The time span to be increased each day = 5 minutes.

To Find,

The day on which Aman will walk for 135 minutes.

Solution,

Each day the time span increases by 5 minutes.

The time span on the first day is 10 minutes.

∴ To cover a time span of 135 minutes, he must cover $(10+5x) minutes$

⇒ $135 = (10+5x) minutes$

⇒$5x = 125\\x= 25$

∴It requires 25 days more to cover the remaining 125 minutes.

Thus the total number of days to cover 135 minutes = 25+1 = 26.

Henceforth, Aman will be able to walk for 135 minutes on the 26th day.